shells: guard platform-specific pcsc tools

.codex/config.toml

@@ -0,0 +1,13 @@
+[mcp_servers.nixos]
+command = "mcp-nixos"
+startup_timeout_sec = 30
+tool_timeout_sec = 60
+required = false
+
+[mcp_servers.github]
+url = "https://api.githubcopilot.com/mcp/"
+bearer_token_env_var = "GITHUB_PERSONAL_ACCESS_TOKEN"
+http_headers = { X-MCP-Readonly = "true", X-MCP-Toolsets = "repos,pull_requests,actions" }
+startup_timeout_sec = 30
+tool_timeout_sec = 60
+required = false

.github/actions/check-nixos/action.yaml

@@ -1,27 +1,15 @@
 # Reference: https://github.com/ryoppippi/dotfiles/blob/main/.github/workflows/nix-build.yaml
-name: Check NixOS configurations
+name: Build Linux checks
-description: Build every NixOS configuration and the Registry tests
+description: Build every x86_64-linux flake check in parallel
 runs:
   using: composite
   steps:
-    - name: Build every NixOS configuration
+    - name: Build all Linux checks
       shell: bash
       run: |
         set -euo pipefail
-
+        nix run .#nix-fast-build -- \
-        mapfile -t hosts < <(
+          --flake .#checks.x86_64-linux \
-          nix eval --raw .#nixosConfigurations \
+          --skip-cached \
-            --apply 'configs: builtins.concatStringsSep "\n" (builtins.attrNames configs)'
+          --no-nom \
-        )
+          --no-link
-
-        installables=(.#checks.x86_64-linux.registry)
-        for host in "${hosts[@]}"; do
-          installables+=(".#nixosConfigurations.${host}.config.system.build.toplevel")
-        done
-
-        nix build \
-          --keep-going \
-          --no-link \
-          --print-build-logs \
-          --show-trace \
-          "${installables[@]}"

.github/actions/setup-nix/action.yaml

@@ -20,3 +20,4 @@ runs:
         primary-key: nix-${{ runner.os }}-${{ runner.arch }}-${{ hashFiles('flake.lock') }}
         restore-prefixes-first-match: nix-${{ runner.os }}-${{ runner.arch }}-
         gc-max-store-size-linux: 4G
+        gc-max-store-size-macos: 4G

.github/workflows/nixos.yaml

@@ -1,36 +1,50 @@
 # Reference: https://github.com/ryoppippi/dotfiles/blob/main/.github/workflows/nix-build.yaml
-name: "CI: NixOS"
+name: "CI: Nix"
 on:
   push:
     branches:
       - main
     paths:
+      - .gitignore
+      - AGENTS.md
+      - README.md
+      - "docs/**"
       - flake.nix
       - flake.lock
+      - ".codex/**"
+      - ".github/**"
+      - ".vscode/**"
       - "flake/**"
       - "hosts/**"
       - "libs/**"
       - "modules/**"
+      - "opencode.json"
       - "overlays/**"
+      - "scripts/**"
       - "shells/**"
+      - "skills/**"
       - "tests/**"
-      - ".github/actions/check-nixos/**"
-      - ".github/actions/setup-nix/**"
-      - ".github/workflows/nixos.yaml"
   pull_request:
     paths:
+      - .gitignore
+      - AGENTS.md
+      - README.md
+      - "docs/**"
       - flake.nix
       - flake.lock
+      - ".codex/**"
+      - ".github/**"
+      - ".vscode/**"
       - "flake/**"
       - "hosts/**"
       - "libs/**"
       - "modules/**"
+      - "opencode.json"
       - "overlays/**"
+      - "scripts/**"
       - "shells/**"
+      - "skills/**"
       - "tests/**"
-      - ".github/actions/check-nixos/**"
-      - ".github/actions/setup-nix/**"
-      - ".github/workflows/nixos.yaml"
   workflow_dispatch:
 concurrency:
   group: ${{ github.workflow }}-${{ github.ref }}
@@ -38,14 +52,153 @@ concurrency:
 permissions:
   contents: read
 jobs:
-  check:
+  validate:
-    name: Check all NixOS configurations
+    name: Plan, lint, and evaluate
     runs-on: ubuntu-latest
     timeout-minutes: 120
+    outputs:
+      build_linux: ${{ steps.plan.outputs.build_linux }}
+      build_darwin: ${{ steps.plan.outputs.build_darwin }}
+      nix_validation: ${{ steps.plan.outputs.nix_validation }}
     steps:
       - name: Checkout repository
         uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7
+        with:
+          fetch-depth: 0
       - name: Setup Nix
         uses: ./.github/actions/setup-nix
-      - name: Check NixOS configurations
+      - name: Plan validation
+        id: plan
+        env:
+          PR_BASE_SHA: ${{ github.event.pull_request.base.sha }}
+          PUSH_BASE_SHA: ${{ github.event.before }}
+        shell: bash
+        run: |
+          set -euo pipefail
+
+          case "${{ github.event_name }}" in
+            pull_request)
+              plan="$(nix run .#check -- plan --base "$PR_BASE_SHA" --json)"
+              ;;
+            push)
+              plan="$(nix run .#check -- plan --base "$PUSH_BASE_SHA" --json)"
+              ;;
+            *)
+              plan="$(nix run .#check -- plan --all-files --all-hosts --json)"
+              ;;
+          esac
+
+          printf '%s\n' "$plan"
+          nix_validation="$(jq -r '.requiresNixValidation' <<<"$plan")"
+
+          if [[ "${{ github.event_name }}" == "pull_request" ]]; then
+            build_linux="$(jq -r '.nativeBuildSystems["x86_64-linux"] // false' <<<"$plan")"
+            build_darwin="$(jq -r '.nativeBuildSystems["aarch64-darwin"] // false' <<<"$plan")"
+          else
+            build_linux="$nix_validation"
+            build_darwin="$nix_validation"
+          fi
+
+          {
+            echo "nix_validation=$nix_validation"
+            echo "build_linux=$build_linux"
+            echo "build_darwin=$build_darwin"
+          } >> "$GITHUB_OUTPUT"
+      - name: Run fast checks
+        env:
+          PR_BASE_SHA: ${{ github.event.pull_request.base.sha }}
+          PUSH_BASE_SHA: ${{ github.event.before }}
+        shell: bash
+        run: |
+          set +e
+          set -uo pipefail
+          case "${{ github.event_name }}" in
+            pull_request)
+              nix run .#check -- fast --base "$PR_BASE_SHA"
+              ;;
+            push)
+              nix run .#check -- fast --base "$PUSH_BASE_SHA"
+              ;;
+            *)
+              nix run .#check -- fast --all-files
+              ;;
+          esac
+          status=$?
+          if (( status != 0 )); then
+            git diff -- .
+            exit "$status"
+          fi
+      - name: Evaluate configurations
+        if: steps.plan.outputs.nix_validation == 'true' || github.event_name == 'workflow_dispatch'
+        env:
+          PR_BASE_SHA: ${{ github.event.pull_request.base.sha }}
+          PUSH_BASE_SHA: ${{ github.event.before }}
+        shell: bash
+        run: |
+          set -euo pipefail
+          case "${{ github.event_name }}" in
+            pull_request)
+              nix run .#check -- eval --base "$PR_BASE_SHA"
+              ;;
+            push)
+              nix run .#check -- eval --base "$PUSH_BASE_SHA" --all-systems
+              ;;
+            *)
+              nix run .#check -- eval --all-hosts --all-systems
+              ;;
+          esac
+  build-linux:
+    name: Build Linux checks
+    needs: validate
+    if: needs.validate.outputs.build_linux == 'true'
+    runs-on: ubuntu-latest
+    timeout-minutes: 180
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7
+        with:
+          fetch-depth: 0
+      - name: Setup Nix
+        uses: ./.github/actions/setup-nix
+      - name: Build affected Linux checks
+        if: github.event_name == 'pull_request'
+        env:
+          PR_BASE_SHA: ${{ github.event.pull_request.base.sha }}
+        shell: bash
+        run: |
+          set -euo pipefail
+          nix run .#check -- build --base "$PR_BASE_SHA"
+      - name: Build all Linux checks
+        if: github.event_name != 'pull_request'
         uses: ./.github/actions/check-nixos
+  build-darwin:
+    name: Build Darwin checks
+    needs: validate
+    if: needs.validate.outputs.build_darwin == 'true'
+    runs-on: macos-15
+    timeout-minutes: 180
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7
+        with:
+          fetch-depth: 0
+      - name: Setup Nix
+        uses: ./.github/actions/setup-nix
+      - name: Build affected Darwin checks
+        if: github.event_name == 'pull_request'
+        env:
+          PR_BASE_SHA: ${{ github.event.pull_request.base.sha }}
+        shell: bash
+        run: |
+          set -euo pipefail
+          nix run .#check -- build --base "$PR_BASE_SHA"
+      - name: Build all Darwin checks
+        if: github.event_name != 'pull_request'
+        shell: bash
+        run: |
+          set -euo pipefail
+          nix run .#nix-fast-build -- \
+            --flake .#checks.aarch64-darwin \
+            --skip-cached \
+            --no-nom \
+            --no-link

.github/workflows/update-flake.yaml

@@ -12,9 +12,11 @@ permissions:
   pull-requests: write
 jobs:
   update:
-    name: Update and validate flake inputs
+    name: Update and check Linux
     runs-on: ubuntu-latest
-    timeout-minutes: 120
+    timeout-minutes: 180
+    outputs:
+      changed: ${{ steps.update.outputs.changed }}
     steps:
       - name: Checkout repository
         uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7
@@ -22,18 +24,76 @@ jobs:
         uses: ./.github/actions/setup-nix
       - name: Update flake inputs
         id: update
+        shell: bash
         run: |
+          set -euo pipefail
           nix flake update
           if git diff --quiet -- flake.lock; then
             echo 'changed=false' >> "$GITHUB_OUTPUT"
           else
             echo 'changed=true' >> "$GITHUB_OUTPUT"
           fi
-      - name: Check updated NixOS configurations
+      - name: Evaluate every flake system
+        if: steps.update.outputs.changed == 'true'
+        shell: bash
+        run: |
+          set -euo pipefail
+          nix flake check \
+            --no-build \
+            --all-systems \
+            --keep-going \
+            --show-trace
+      - name: Build Linux checks
         if: steps.update.outputs.changed == 'true'
         uses: ./.github/actions/check-nixos
-      - name: Create update pull request
+      - name: Upload updated lock file
         if: steps.update.outputs.changed == 'true'
+        uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4.6.2
+        with:
+          name: flake-lock
+          path: flake.lock
+          if-no-files-found: error
+  check-darwin:
+    name: Check Darwin
+    needs: update
+    if: needs.update.outputs.changed == 'true'
+    runs-on: macos-15
+    timeout-minutes: 180
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7
+      - name: Download updated lock file
+        uses: actions/download-artifact@d3f86a106a0bac45b974a628896c90dbdf5c8093 # v4.3.0
+        with:
+          name: flake-lock
+          path: .
+      - name: Setup Nix
+        uses: ./.github/actions/setup-nix
+      - name: Build Darwin checks
+        shell: bash
+        run: |
+          set -euo pipefail
+          nix run .#nix-fast-build -- \
+            --flake .#checks.aarch64-darwin \
+            --skip-cached \
+            --no-nom \
+            --no-link
+  pull-request:
+    name: Create update pull request
+    needs:
+      - update
+      - check-darwin
+    if: needs.update.outputs.changed == 'true'
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7
+      - name: Download validated lock file
+        uses: actions/download-artifact@d3f86a106a0bac45b974a628896c90dbdf5c8093 # v4.3.0
+        with:
+          name: flake-lock
+          path: .
+      - name: Create update pull request
         uses: peter-evans/create-pull-request@5f6978faf089d4d20b00c7766989d076bb2fc7f1 # v8.1.1
         with:
           token: ${{ secrets.GITHUB_TOKEN }}
@@ -45,4 +105,5 @@ jobs:
           body: |
             Automated update of `flake.lock`.
 
-            The updated inputs passed the Registry tests and a build of every NixOS configuration.
+            The updated inputs passed all-system evaluation and native builds of
+            the Linux and Darwin check sets.

.gitignore

@@ -1,4 +1,6 @@
 /*
+**/__pycache__/
+*.py[cod]
 
 !.gitignore
 !README.md
@@ -6,8 +8,10 @@
 !AGENTS.md
 !/docs/
 
-!.github/
+!/.codex/
+!/.github/
 !.gitea/
+!/.vscode/
 
 !.envrc
 
@@ -15,7 +19,9 @@
 
 !/flake.nix
 !/flake.lock
+!/opencode.json
 
+!/scripts/
 !/shells/
 !/flake/
 !/overlays/

.vscode/settings.json

@@ -0,0 +1,28 @@
+{
+  "nix.enableLanguageServer": true,
+  "nix.serverPath": "nixd",
+  "nix.serverSettings": {
+    "nixd": {
+      "formatting": {
+        "command": ["nixfmt"]
+      },
+      "nixpkgs": {
+        "expr": "import (builtins.getFlake (builtins.toString ./.)).inputs.nixpkgs { }"
+      },
+      "options": {
+        "nixos": {
+          "expr": "(builtins.getFlake (builtins.toString ./.)).nixosConfigurations.galleria.options"
+        },
+        "home-manager-nixos": {
+          "expr": "(builtins.getFlake (builtins.toString ./.)).nixosConfigurations.galleria.options.home-manager.users.type.getSubOptions []"
+        },
+        "darwin": {
+          "expr": "(builtins.getFlake (builtins.toString ./.)).darwinConfigurations.m2.options"
+        },
+        "home-manager-darwin": {
+          "expr": "(builtins.getFlake (builtins.toString ./.)).darwinConfigurations.m2.options.home-manager.users.type.getSubOptions []"
+        }
+      }
+    }
+  }
+}

AGENTS.md

@@ -357,7 +357,6 @@ modules/profiles/
 │   ├── labwc/
 │   └── niri/
 ├── networking/
-│   ├── homelab-cache-client/
 │   ├── tailscale-client/
 │   └── tailscale-subnet-router/
 ├── platform/
@@ -368,11 +367,7 @@ modules/profiles/
 │   ├── desktop/
 │   └── vm/
 ├── workload/
-│   ├── camera/
 │   ├── development/
-│   ├── game/
-│   ├── machine-learning/
-│   ├── nix-builder/
 │   ├── personal/
 │   ├── server/
 │   └── remote-access/
@@ -607,7 +602,6 @@ A host registry may use a specification like this:
       "security.secrets"
       "security.secure-boot"
       "security.tpm-storage"
-      "workload.camera"
       "workload.development"
       "workload.personal"
     ];
@@ -630,7 +624,6 @@ A host registry may use a specification like this:
       "security.tpm-storage"
       "workload.development"
       "workload.game"
-      "workload.machine-learning"
       "workload.personal"
     ];
   };

README.md

@@ -1,3 +1,6 @@
 # moons14 dotfiles
 
-My NixOS + Home Manager configurations build with flake.
+My NixOS, nix-darwin, and Home Manager configurations built with flakes.
+
+See [Coding-agent validation](docs/coding-agents.md) for the non-activating,
+change-aware validation workflow used by Codex, OpenCode, and CI.

docs/coding-agents.md

@@ -0,0 +1,86 @@
+# Coding-agent workflow
+
+This repository exposes deterministic validation and narrowly scoped research
+tools for Codex, OpenCode, and editor agents. Live system activation is outside
+this workflow.
+
+## Validation commands
+
+Use task-owned paths during the edit loop:
+
+```console
+nix run .#check -- plan --paths modules/applications/example/home.nix --json
+nix run .#check -- fast --paths modules/applications/example/home.nix
+nix run .#check -- eval --paths modules/applications/example/home.nix
+nix run .#check -- build --paths modules/applications/example/home.nix
+nix run .#check -- all --paths modules/applications/example/home.nix
+```
+
+For a committed pull-request range, replace `--paths ...` with
+`--base <base-sha>`. `full` is reserved for CI, scheduled maintenance, or an
+explicit repository-wide audit:
+
+```console
+nix run .#check -- full
+```
+
+The stages have distinct meanings:
+
+- `plan` maps changed paths to Registry units, reverse `meta.includes`
+  dependencies, real hosts, and compatible build systems.
+- `fast` parses changed Nix files, validates JSON, TOML, Python, and Agent Skill
+  frontmatter, checks whitespace, and runs configured hooks only for the
+  selected files.
+- `eval` instantiates affected NixOS and nix-darwin configurations. Flake-wide,
+  validation-tool, shell, overlay, and test changes additionally evaluate every
+  flake system.
+- `build` realizes affected configurations supported by the current platform
+  with no result link. Incompatible targets remain evaluation-only until a
+  matching runner handles them.
+- `all` performs task-scoped file checks, all-system evaluation, and compatible
+  targeted builds.
+- `full` runs all-file hooks, all-system evaluation, and every check for the
+  current platform through `nix-fast-build`.
+
+The validation app constructs a filtered temporary `path:` flake from the
+committed `HEAD` tree and overlays only task-owned changed paths. This isolates
+unrelated worktree changes, makes new untracked Registry fragments visible to
+Nix without staging them, and avoids copying ignored state such as `.direnv`.
+
+None of these commands runs `nh os switch`, `nixos-rebuild switch`,
+`darwin-rebuild switch`, `home-manager switch`, or another activation command.
+The user performs activation separately.
+
+## Agent Skills
+
+Read `AGENTS.md` first. Use the repository skills as follows:
+
+- `validate-nix-change` controls validation scope and evidence.
+- `debug-nix-failure` classifies parse, evaluation, build, test, activation-log,
+  and runtime failures before proposing a correction.
+- `test-nixos-service` adds a `pkgs.testers.runNixOSTest` check when a build
+  cannot prove service behavior.
+- `update-flake-input` limits lock-file updates and validates them without
+  activating a host.
+- `add-application-or-service` preserves Registry ownership and delegates
+  validation to `validate-nix-change`.
+
+## MCP and language-server setup
+
+The development workload installs `mcp-nixos`, `nixd`, `nix-fast-build`, and
+`nix-tree`.
+
+Project-local Codex and OpenCode configuration exposes:
+
+- `mcp-nixos` for current NixOS, Home Manager, nix-darwin, package, and Nix
+  documentation queries;
+- GitHub's remote MCP endpoint for Codex and OpenCode in read-only mode,
+  restricted to repository, pull-request, and Actions toolsets.
+
+Set `GITHUB_PERSONAL_ACCESS_TOKEN` in the launching environment when GitHub MCP
+access is needed. Do not commit the token or put it in a Nix expression because
+that would expose it through source control or the Nix store.
+
+The workspace VS Code settings use `nixd` and expose option sets for the
+`galleria` NixOS configuration, its integrated Home Manager configuration, the
+`m2` nix-darwin configuration, and its integrated Home Manager configuration.

docs/ios-simulator.md

@@ -1,119 +0,0 @@
-# iOS Simulator 初期セットアップ
-
-この手順は `m2` の macOS 環境で、stable Xcode と最新の stable iOS Simulator Runtime を使える状態にするためのもの。
-
-## 前提
-
-- `m2` が `workload.development` profile を有効にしていること
-- Mac App Store に Apple Account でサインイン済みであること
-- dotfiles を最新化していること
-
-Xcode 本体は `applications.xcode` が Mac App Store 版を管理する。Simulator Runtime は Apple が管理する mutable state のため、Nix store には入れず専用 dev shell から導入する。
-
-## 1. macOS 設定を反映する
-
-リポジトリ直下で nix-darwin の設定を反映する。
-
-```bash
-sudo darwin-rebuild switch --flake .#m2
-```
-
-これにより `/Applications/Xcode.app` に stable Xcode がインストールされる。
-
-Xcode のインストールで Mac App Store の認証エラーになる場合は、App Store を一度開いてサインイン状態を確認してから再実行する。
-
-## 2. iOS Simulator Runtime を導入する
-
-初回セットアップは次の1コマンドで行う。
-
-```bash
-nix develop .#ios -c ios-simulator-install
-```
-
-`ios-simulator-install` は次を順に実行する。
-
-1. `/Applications/Xcode.app` が存在することを確認
-2. `xcode-select` の Developer Directory を stable Xcode に切り替え
-3. Xcode の first-launch components を導入
-4. 利用可能な新しい hardware support components を確認
-5. 選択中の Xcode に対応する最新の iOS Simulator Runtime をダウンロードしてインストール
-6. Xcode のバージョンとインストール済み Simulator Runtime を表示
-
-途中で `sudo` の認証を求められる場合がある。
-
-## 3. インストールを確認する
-
-```bash
-xcodebuild -version
-xcode-select -p
-xcrun simctl list runtimes
-xcrun simctl list devices available
-```
-
-`xcode-select -p` は次を指していること。
-
-```text
-/Applications/Xcode.app/Contents/Developer
-```
-
-`xcrun simctl list runtimes` に iOS runtime が表示されればセットアップ完了。
-
-## 4. Simulator を起動する
-
-```bash
-open -a Simulator
-```
-
-Simulator の Device メニューから、インストール済み runtime で利用可能な iPhone を選択する。
-
-## Runtime の更新
-
-Xcode を stable の新しいバージョンへ更新した後は、同じコマンドを再実行する。
-
-```bash
-nix develop .#ios -c ios-simulator-install
-```
-
-Xcode の選択、first-launch components、hardware support、iOS Simulator Runtime の状態をまとめて更新できる。
-
-## トラブルシューティング
-
-### Xcode が見つからない
-
-次のエラーが出る場合、先に nix-darwin の設定を反映する。
-
-```text
-Xcode is not installed at /Applications/Xcode.app.
-```
-
-```bash
-sudo darwin-rebuild switch --flake .#m2
-```
-
-### Simulator Runtime が見えない
-
-まず runtime 一覧を確認する。
-
-```bash
-xcrun simctl list runtimes
-```
-
-iOS runtime がない場合は再度インストーラーを実行する。
-
-```bash
-nix develop .#ios -c ios-simulator-install
-```
-
-### Command Line Tools 側を参照している
-
-```bash
-xcode-select -p
-```
-
-が `/Library/Developer/CommandLineTools` を指している場合でも、`ios-simulator-install` が `/Applications/Xcode.app/Contents/Developer` へ切り替える。
-
-手動で直す場合は次を実行する。
-
-```bash
-sudo xcode-select --switch /Applications/Xcode.app/Contents/Developer
-```

flake.nix

@@ -38,6 +38,12 @@
       url = "github:ghostty-org/ghostty";
     };
 
+    # Speech to text
+    handy = {
+      url = "github:cjpais/Handy";
+      inputs.nixpkgs.follows = "nixpkgs";
+    };
+
     # Shell / Launcher
     vicinae.url = "github:vicinaehq/vicinae";
 
@@ -60,11 +66,6 @@
       inputs.nixpkgs.follows = "nixpkgs";
     };
 
-    deploy-rs = {
-      url = "github:serokell/deploy-rs";
-      inputs.nixpkgs.follows = "nixpkgs";
-    };
-
     # Disk management
     disko = {
       url = "github:nix-community/disko";
@@ -96,13 +97,6 @@
       url = "github:ilysenko/codex-desktop-linux";
     };
 
-    codex-session-usage.url = "github:moons-14/codex-session-usage";
-
-    skills = {
-      url = "github:mattpocock/skills";
-      flake = false;
-    };
-
     # Index / Search
     nix-index-database = {
       url = "github:nix-community/nix-index-database";

flake/default.nix

@@ -1,8 +1,8 @@
 {
   imports = [
-    ./deploy.nix
     ./formatter.nix
     ./git-hooks.nix
     ./registry.nix
+    ./validation.nix
   ];
 }

flake/deploy.nix

@@ -1,28 +0,0 @@
-{
-  inputs,
-  self,
-  ...
-}:
-{
-  flake.deploy = {
-    nodes.nix-builder = {
-      hostname = "nix-builder";
-      sshUser = "moons";
-      user = "root";
-
-      interactiveSudo = true;
-      remoteBuild = true;
-      autoRollback = true;
-      magicRollback = true;
-
-      profiles.system.path = inputs.deploy-rs.lib.x86_64-linux.activate.nixos self.nixosConfigurations.nix-builder;
-    };
-  };
-
-  perSystem =
-    { system, ... }:
-    {
-      apps.deploy = inputs.deploy-rs.apps.${system}.default;
-      checks = inputs.deploy-rs.lib.${system}.deployChecks self.deploy;
-    };
-}

flake/git-hooks.nix

@@ -34,7 +34,9 @@
             ];
           };
 
+          actionlint.enable = true;
           deadnix.enable = true;
+          ruff.enable = true;
           statix.enable = true;
           shellcheck.enable = true;
         };

flake/registry.nix

@@ -25,11 +25,42 @@ let
     else
       { };
   configurations = dotfilesLib.hosts.mkConfigurations hostSpecs;
+
+  validationMetadata = {
+    schemaVersion = 1;
+
+    hosts = lib.mapAttrs (
+      name: spec:
+      let
+        isDarwin = lib.hasSuffix "-darwin" spec.system;
+      in
+      {
+        inherit (spec) system user;
+        kind = if isDarwin then "darwin" else "nixos";
+        homeManager = spec.homeManager or true;
+        selectedUnits = dotfilesLib.hosts.selectedUnits spec;
+        buildAttr =
+          if isDarwin then
+            "darwinConfigurations.${name}.system"
+          else
+            "nixosConfigurations.${name}.config.system.build.toplevel";
+      }
+    ) hostSpecs;
+
+    units = lib.mapAttrs (_id: unit: {
+      inherit (unit) id relativePath;
+      directory = "modules/${lib.concatStringsSep "/" unit.relativePath}";
+      includes = unit.meta.includes;
+      fragments = builtins.attrNames (lib.filterAttrs (_: value: value != null) unit.fragments);
+    }) dotfilesLib.registry.units;
+  };
 in
 {
   flake = {
     inherit (configurations) darwinConfigurations nixosConfigurations;
-    lib = dotfilesLib;
+    lib = dotfilesLib // {
+      inherit validationMetadata;
+    };
   };
 
   perSystem =
@@ -37,11 +68,10 @@ in
     let
       nixosChecks =
         lib.mapAttrs' (name: nixos: lib.nameValuePair "nixos-${name}" nixos.config.system.build.toplevel)
-          (
+          (lib.filterAttrs (name: _: hostSpecs.${name}.system == system) configurations.nixosConfigurations);
-            lib.filterAttrs (
+      darwinChecks = lib.mapAttrs' (name: darwin: lib.nameValuePair "darwin-${name}" darwin.system) (
-              _: nixos: nixos.pkgs.stdenv.hostPlatform.system == system
+        lib.filterAttrs (name: _: hostSpecs.${name}.system == system) configurations.darwinConfigurations
-            ) configurations.nixosConfigurations
+      );
-          );
     in
     {
       checks = {
@@ -49,6 +79,7 @@ in
           inherit inputs lib pkgs;
         };
       }
-      // nixosChecks;
+      // nixosChecks
+      // darwinChecks;
     };
 }

flake/validation.nix

@@ -0,0 +1,51 @@
+_: {
+  perSystem =
+    { pkgs, config, ... }:
+    let
+      script = pkgs.writeText "dotfiles-check.py" (builtins.readFile ../scripts/dotfiles-check.py);
+      dotfilesCheck = pkgs.writeShellApplication {
+        name = "dotfiles-check";
+        runtimeInputs = [
+          pkgs.git
+          pkgs.nix
+          pkgs.python3
+        ];
+        text = ''
+          exec python3 ${script} "$@"
+        '';
+      };
+    in
+    {
+      apps = {
+        check = {
+          type = "app";
+          program = "${dotfilesCheck}/bin/dotfiles-check";
+        };
+        nix-fast-build = {
+          type = "app";
+          program = "${pkgs.nix-fast-build}/bin/nix-fast-build";
+        };
+      };
+
+      packages = {
+        dotfiles-check = dotfilesCheck;
+        inherit (pkgs) nix-fast-build;
+      };
+
+      devShells.validation = config.pre-commit.devShell;
+
+      checks = {
+        validation-tool =
+          pkgs.runCommand "dotfiles-check-self-test"
+            {
+              nativeBuildInputs = [ dotfilesCheck ];
+            }
+            ''
+              dotfiles-check self-test
+              touch "$out"
+            '';
+
+        dotnix-shell = config.devShells.dotnix;
+      };
+    };
+}

hosts/default.nix

@@ -1,20 +1,47 @@
 {
-  nix-builder = {
+  nix-example = {
     system = "x86_64-linux";
     stateVersion = "26.05";
     user = "moons";
-    path = ./nix-builder;
+    path = ./nix-example;
 
     profiles = [
       "base"
       "interface.cli"
-      "networking.tailscale-client"
       "platform.vm"
-      "workload.nix-builder"
+      "workload.development"
       "workload.remote-access"
     ];
   };
 
+  ops = {
+    system = "x86_64-linux";
+    stateVersion = "26.05";
+    user = "moons";
+    path = ./ops;
+
+    profiles = [
+      "base"
+      "interface.cli"
+      "platform.vm"
+      "workload.remote-access"
+    ];
+  };
+
+  internal-app-01 = {
+    system = "x86_64-linux";
+    stateVersion = "26.05";
+    user = "moons";
+    path = ./internal-app-01;
+
+    profiles = [
+      "base"
+      "interface.cli"
+      "platform.vm"
+      "workload.server"
+    ];
+  };
+
   installer = {
     system = "x86_64-linux";
     stateVersion = "26.05";
@@ -64,7 +91,6 @@
       "workload.game"
       "workload.personal"
     ];
-
   };
 
   galleria = {
@@ -78,7 +104,7 @@
       "interface.cli"
       "interface.labwc"
       "interface.niri"
-      "networking.tailscale-client"
+      "interface.wallpaperengine"
       "platform.intel-nvidia-desktop"
       "security.secrets"
       "security.secure-boot"
@@ -86,9 +112,7 @@
       "security.fingerprint"
       "workload.development"
       "workload.game"
-      "workload.machine-learning"
       "workload.personal"
-      "workload.camera"
     ];
   };
 

hosts/galleria/home.nix

@@ -4,11 +4,6 @@
   ...
 }:
 {
-  # This desktop is permanently connected to AC power.
-  systemd.user.services.swayidle.Service.Environment = [
-    "SWAYIDLE_ASSUME_AC=1"
-  ];
-
   services.kanshi = {
     enable = true;
 

hosts/galleria/nixos.nix

@@ -8,13 +8,6 @@
   boot.initrd.luks.devices.cryptroot.device =
     "/dev/disk/by-partuuid/04295552-cbb8-4511-ac1e-1171ec20f8d1";
 
-  # Keep Windows data and recovery partitions out of UDisks-based file
-  # managers. The shared EFI System Partition stays available as /boot.
-  services.udev.extraRules = ''
-    ENV{ID_PART_ENTRY_UUID}=="0480f887-d1f9-489d-b8fe-78549ced1938", ENV{UDISKS_IGNORE}="1"
-    ENV{ID_PART_ENTRY_UUID}=="6c70041b-3f65-4eb1-8b08-18ed20001877", ENV{UDISKS_IGNORE}="1"
-  '';
-
   environment.systemPackages = with inputs.browser-previews.packages.${pkgs.system}; [
     google-chrome-beta
   ];

hosts/installer/nixos.nix

@@ -31,7 +31,6 @@
   users.users.root.openssh.authorizedKeys.keys = [
     "sk-ssh-ed25519@openssh.com AAAAGnNrLXNzaC1lZDI1NTE5QG9wZW5zc2guY29tAAAAIKhxDkucmeCor6CKoXAua7DgDSzuXrZOtpdkyzQxz5+aAAAABHNzaDo= moons@moons14.com"
     "sk-ssh-ed25519@openssh.com AAAAGnNrLXNzaC1lZDI1NTE5QG9wZW5zc2guY29tAAAAIN6hZJyng/5LgFKPjR6uZAd/00UkO0vN0uQOoIvfSELdAAAABHNzaDo= moons@moons14.com"
-    "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIPLwReAiwhXoO34S2+MrvqUhi8IWp4IzUq4OSp3niJdq"
   ];
 
   environment.systemPackages = with pkgs; [

hosts/internal-app-01/hardware-configuration.nix

@@ -1,12 +1,8 @@
-# Do not modify this file!  It was generated by ‘nixos-generate-config’
+# Do not modify this file! It was generated by `nixos-generate-config` and may
-# and may be overwritten by future invocations.  Please make changes
+# be overwritten by future invocations.
-# to /etc/nixos/configuration.nix instead.
 { lib, modulesPath, ... }:
-
 {
-  imports = [
+  imports = [ (modulesPath + "/profiles/qemu-guest.nix") ];
-    (modulesPath + "/profiles/qemu-guest.nix")
-  ];
 
   boot.initrd.availableKernelModules = [
     "ata_piix"
@@ -21,12 +17,12 @@
   boot.extraModulePackages = [ ];
 
   fileSystems."/" = {
-    device = "/dev/disk/by-uuid/49fc2e1c-7909-41cc-ac78-55b4d9a01e62";
+    device = "/dev/disk/by-uuid/1b12ab98-2537-4207-a3f4-bb8ba7b53b00";
     fsType = "ext4";
   };
 
   fileSystems."/boot" = {
-    device = "/dev/disk/by-uuid/40D4-ABBE";
+    device = "/dev/disk/by-uuid/8365-C778";
     fsType = "vfat";
     options = [
       "fmask=0077"

hosts/internal-app-01/nixos.nix

@@ -0,0 +1,3 @@
+{
+  imports = [ ./hardware-configuration.nix ];
+}

hosts/nix-builder/README.md

@@ -1,101 +0,0 @@
-# nix-builder bootstrap
-
-The host configuration can be built before its cache signing secret exists.
-Harmonia's socket remains stopped until SOPS installs the signing key at
-`/run/secrets/harmonia/signing-key`.
-
-## Proxmox storage layout
-
-The host configuration expects three filesystems. Keep the build scratch space
-separate from the store so a large build cannot fill the root filesystem.
-
-| Mount point          | Suggested size | Contents                        |
-| -------------------- | -------------- | ------------------------------- |
-| `/`                  | 48 GiB         | NixOS and mutable system state  |
-| `/var/lib/nix-build` | 192 GiB        | Disposable build scratch space  |
-| `/nix/store`         | 1 TiB          | Fleet closures and binary cache |
-
-The build-server policy starts emergency store GC below 64 GiB free and aims
-for 128 GiB free. Persistent roots under `/var/lib/nix-fleet/roots` protect the
-latest fleet builds from that GC. It also limits Nix to two concurrent
-derivations while allowing each derivation to use every vCPU assigned to the
-VM.
-
-For the two dedicated ext4 data filesystems, remove the default root-reserved
-blocks once after formatting; keep the root filesystem's reserve intact:
-
-```bash
-sudo tune2fs -m 0 /dev/disk/by-label/nix-build
-sudo tune2fs -m 0 /dev/disk/by-label/nix-store
-```
-
-## Initial deployment
-
-Once the VM is reachable as `moons@nix-builder`, deploy it from the repository:
-
-```bash
-nix run .#deploy -- .#nix-builder
-```
-
-deploy-rs uses the target's `ssh-ng` store, so the system closure is built on
-the builder rather than copied from the laptop. Automatic and magic rollback
-remain enabled.
-
-## Add the host SOPS recipient
-
-After the VM has a stable SSH host key, derive its age recipient:
-
-```bash
-ssh-keyscan -t ed25519 nix-builder 2>/dev/null | ssh-to-age
-```
-
-Add the recipient to `.sops.yaml` and add a creation rule for
-`secrets/hosts/nix-builder/*.yaml`. The admin YubiKey recipient should remain in
-the same key group for recovery.
-
-## Generate the cache signing key
-
-Run this on a trusted Nix machine, preferably with the temporary files on a
-tmpfs:
-
-```bash
-nix-store --generate-binary-cache-key \
-  cache.app.homelabs.run-1 \
-  harmonia.private \
-  harmonia.public
-```
-
-Create `secrets/hosts/nix-builder/system.yaml` with SOPS and store the complete
-contents of `harmonia.private` at `harmonia.signing-key`:
-
-```yaml
-harmonia:
-  signing-key: cache.app.homelabs.run-1:REDACTED
-```
-
-Copy the complete contents of `harmonia.public` to
-`modules/systems/nix/homelab-cache/public-key`. The private plaintext file must
-not be committed or retained.
-
-After committing both encrypted/public files, select
-`networking.homelab-cache-client` on each client host.
-
-Redeploy the builder and verify the cache after installing the secret:
-
-```bash
-nix run .#deploy -- .#nix-builder
-curl --fail http://nix-builder:5000/nix-cache-info
-```
-
-## Normal operation
-
-Run `fleet-build` on the builder to build and root every NixOS host, or pass a
-list of host names to build only those hosts. Run `fleet-deploy` with the normal
-deploy-rs target syntax when additional fleet nodes have been added to
-`flake/deploy.nix`:
-
-```bash
-fleet-build
-fleet-build x1g13 galleria
-fleet-deploy .#nix-builder
-```

hosts/nix-builder/filesystem.nix

@@ -1,25 +0,0 @@
-{
-  fileSystems."/nix/store" = {
-    device = "/dev/disk/by-label/nix-store";
-    fsType = "ext4";
-
-    options = [
-      "noatime"
-    ];
-
-    neededForBoot = true;
-  };
-
-  fileSystems."/var/lib/nix-build" = {
-    device = "/dev/disk/by-label/nix-build";
-    fsType = "ext4";
-
-    options = [
-      "noatime"
-    ];
-  };
-
-  nix.settings.build-dir = "/var/lib/nix-build";
-
-  services.fstrim.enable = true;
-}

hosts/nix-builder/nixos.nix

@@ -1,19 +0,0 @@
-{ lib, ... }:
-let
-  hostSecrets = ../../secrets/hosts/nix-builder/system.yaml;
-in
-{
-  imports = [
-    ./filesystem.nix
-    ./hardware-configuration.nix
-  ];
-
-  sops.secrets = lib.mkIf (builtins.pathExists hostSecrets) {
-    "harmonia/signing-key" = {
-      sopsFile = hostSecrets;
-      restartUnits = [ "harmonia.service" ];
-    };
-  };
-
-  networking.firewall.interfaces."tailscale0".allowedTCPPorts = [ 5000 ];
-}

hosts/ops/hardware-configuration.nix

@@ -0,0 +1,36 @@
+# Do not modify this file! It was generated by `nixos-generate-config` and may
+# be overwritten by future invocations.
+{ lib, modulesPath, ... }:
+{
+  imports = [ (modulesPath + "/profiles/qemu-guest.nix") ];
+
+  boot.initrd.availableKernelModules = [
+    "ata_piix"
+    "uhci_hcd"
+    "virtio_pci"
+    "virtio_scsi"
+    "sd_mod"
+    "sr_mod"
+  ];
+  boot.initrd.kernelModules = [ ];
+  boot.kernelModules = [ ];
+  boot.extraModulePackages = [ ];
+
+  fileSystems."/" = {
+    device = "/dev/disk/by-uuid/69fa2193-1e4f-438a-8898-5de8a3f36e5b";
+    fsType = "ext4";
+  };
+
+  fileSystems."/boot" = {
+    device = "/dev/disk/by-uuid/D09B-4277";
+    fsType = "vfat";
+    options = [
+      "fmask=0077"
+      "dmask=0077"
+    ];
+  };
+
+  swapDevices = [ ];
+
+  nixpkgs.hostPlatform = lib.mkDefault "x86_64-linux";
+}

hosts/ops/nixos.nix

@@ -0,0 +1,51 @@
+{
+  imports = [ ./hardware-configuration.nix ];
+
+  networking = {
+    useDHCP = false;
+
+    interfaces = {
+      ens18 = {
+        useDHCP = false;
+        ipv4.addresses = [
+          {
+            address = "10.50.128.20";
+            prefixLength = 24;
+          }
+        ];
+      };
+
+      ens19 = {
+        useDHCP = false;
+        ipv4.addresses = [
+          {
+            address = "10.50.7.101";
+            prefixLength = 24;
+          }
+        ];
+      };
+
+      ens20 = {
+        useDHCP = false;
+        ipv4.routes = [
+          {
+            address = "10.50.64.0";
+            prefixLength = 24;
+            via = "10.50.82.1";
+          }
+        ];
+        ipv4.addresses = [
+          {
+            address = "10.50.82.10";
+            prefixLength = 24;
+          }
+        ];
+      };
+    };
+
+    defaultGateway = {
+      address = "10.50.128.1";
+      interface = "ens18";
+    };
+  };
+}

modules/applications/chrome/home/nixos.nix

@@ -1,37 +1,9 @@
-{
+_: {
-  config,
-  lib,
-  pkgs,
-  ...
-}:
-let
-  chrome = pkgs.google-chrome.overrideAttrs (old: {
-    nativeBuildInputs = (old.nativeBuildInputs or [ ]) ++ [ pkgs.makeWrapper ];
-
-    postFixup = (old.postFixup or "") + ''
-      wrapProgram $out/bin/google-chrome-stable \
-        --set LIBVA_DRIVER_NAME nvidia \
-        --set NVD_BACKEND direct
-    '';
-  });
-
-  features = [
-    "MiddleClickAutoscroll"
-    "AcceleratedVideoDecoder"
-    "AcceleratedVideoDecodeLinuxGL"
-    "PlatformHEVCDecoderSupport"
-  ]
-  ++ lib.optional config.my.hardwares.nvidia.enable "VaapiOnNvidiaGPUs";
-in
-{
   programs.google-chrome = {
     enable = true;
-    package = if config.my.hardwares.nvidia.enable then chrome else pkgs.google-chrome;
 
     commandLineArgs = [
-      "--enable-features=${lib.concatStringsSep "," features}"
+      "--enable-features=MiddleClickAutoscroll"
-      "--use-gl=angle"
-      "--use-angle=gl"
     ];
   };
 

modules/applications/codex-desktop/meta.nix

@@ -1,5 +1,10 @@
-_: {
+{ inputs, ... }:
+{
   description = "Codex Desktop for Linux";
 
   includes = [ "applications.codex" ];
+
+  imports.nixos = [
+    inputs.codex-desktop-linux.nixosModules.default
+  ];
 }

modules/applications/codex-desktop/nixos.nix

@@ -4,7 +4,15 @@
   ...
 }:
 {
-  environment.systemPackages = [
+  programs.codexDesktopLinux = {
-    inputs.llm-agents.packages.${pkgs.stdenv.hostPlatform.system}.chatgpt
+    enable = true;
-  ];
+    cliPackage = inputs.llm-agents.packages.${pkgs.stdenv.hostPlatform.system}.codex;
+    remoteControl.enable = true;
+    remoteMobileControl.enable = true;
+    computerUseUi.enable = false;
+    linuxFeatures = [
+      "appshots"
+      "open-target-discovery"
+    ];
+  };
 }

modules/applications/codex-session-usage/home.nix

@@ -1,52 +0,0 @@
-{
-  lib,
-  pkgs,
-  inputs,
-  ...
-}:
-let
-  codexSessionUsage = inputs.codex-session-usage.packages.${pkgs.stdenv.hostPlatform.system}.default;
-in
-{
-  home.packages = [ codexSessionUsage ];
-
-  xdg.dataFile = {
-    "vicinae/scripts/codex-session-usage/start" = {
-      executable = true;
-      text = ''
-        #!${lib.getExe pkgs.bash}
-        # @vicinae.schemaVersion 1
-        # @vicinae.title Start Codex Session Usage
-        # @vicinae.description Start the local Codex session usage dashboard
-        # @vicinae.mode compact
-        # @vicinae.icon 📊
-        # @vicinae.argument1 { "type": "text", "placeholder": "Port (optional)", "optional": true }
-
-        if [[ -z "$1" ]]; then
-          exec ${lib.getExe codexSessionUsage} start
-        fi
-
-        if [[ "$1" =~ ^[0-9]+$ ]] && (( 10#$1 >= 1 && 10#$1 <= 65535 )); then
-          exec ${lib.getExe codexSessionUsage} start --port "$1"
-        fi
-
-        printf '%s\n' 'Port must be an integer between 1 and 65535.' >&2
-        exit 2
-      '';
-    };
-
-    "vicinae/scripts/codex-session-usage/stop" = {
-      executable = true;
-      text = ''
-        #!${lib.getExe pkgs.bash}
-        # @vicinae.schemaVersion 1
-        # @vicinae.title Stop Codex Session Usage
-        # @vicinae.description Stop the local Codex session usage dashboard
-        # @vicinae.mode compact
-        # @vicinae.icon 📊
-
-        exec ${lib.getExe codexSessionUsage} stop
-      '';
-    };
-  };
-}

modules/applications/codex/config.toml

@@ -1,13 +0,0 @@
-model = "gpt-5.6-sol"
-model_reasoning_effort = "medium"
-
-approval_policy = "on-request"
-approvals_reviewer = "auto_review"
-sandbox_mode = "workspace-write"
-web_search = "cached"
-
-[sandbox_workspace_write]
-network_access = false
-
-[projects."/home/moons/dotfiles"]
-trust_level = "trusted"

modules/applications/codex/home.nix

@@ -1,36 +1,6 @@
+{ inputs, pkgs, ... }:
 {
-  config,
+  home.packages = [
-  inputs,
+    inputs.llm-agents.packages.${pkgs.stdenv.hostPlatform.system}.codex
-  lib,
+  ];
-  pkgs,
-  ...
-}:
-let
-  configDirectory =
-    if config.home.preferXdgDirectories then
-      "${config.xdg.configHome}/codex"
-    else
-      "${config.home.homeDirectory}/.codex";
-  configFile = "${configDirectory}/config.toml";
-in
-{
-  programs.codex = {
-    enable = true;
-    package = inputs.llm-agents.packages.${pkgs.stdenv.hostPlatform.system}.codex;
-
-    skills = {
-      grilling = inputs.skills + "/skills/productivity/grilling";
-    };
-  };
-
-  # Keep the repository copy as an initial value. Codex may mutate the live
-  # file between activations; each Home Manager switch resets it from here.
-  home.activation.resetCodexConfig = {
-    after = [ "writeBoundary" ];
-    before = [ ];
-    data = ''
-      ${pkgs.coreutils}/bin/mkdir -p ${lib.escapeShellArg configDirectory}
-      ${pkgs.coreutils}/bin/install -m 0600 ${./config.toml} ${lib.escapeShellArg configFile}
-    '';
-  };
 }

modules/applications/discord/home.nix

@@ -1,15 +1,6 @@
-{
+_: {
-  inputs,
-  pkgs,
-  ...
-}:
-let
-  unstable = inputs.nixpkgs-unstable.legacyPackages.${pkgs.stdenv.hostPlatform.system};
-in
-{
   programs.vesktop = {
     enable = true;
-    package = unstable.vesktop;
 
     settings = {
       discordBranch = "stable";
@@ -25,10 +16,6 @@ in
 
       openLinksWithElectron = false;
 
-      # Keep WebRTC on the public interface selected by the default route.
-      # Secondary private interfaces can otherwise stall voice at DTLS.
-      webRTCIPHandlingPolicy = "default_public_interface_only";
-
       spellCheckLanguages = [
         "ja-JP"
         "en-US"

modules/applications/ffmpeg/home.nix

@@ -1,4 +0,0 @@
-{ pkgs, ... }:
-{
-  home.packages = [ pkgs.ffmpeg ];
-}

modules/applications/ghostty/home/nixos.nix

@@ -1,12 +1,6 @@
 { inputs, system, ... }: {
   programs.ghostty = {
-    # Labwc's Close action correctly targets one xdg-toplevel, but Ghostty's
+    systemd.enable = true;
-    # systemd service runs every window in one GTK single-instance process.
-    # If that process exits while handling the request, every Ghostty window
-    # disappears together. Keep each launcher invocation independent instead.
-    systemd.enable = false;
     package = inputs.ghostty.packages.${system}.default;
-
-    settings.gtk-single-instance = false;
   };
 }

modules/applications/handy/darwin.nix

@@ -0,0 +1,8 @@
+{
+  homebrew.casks = [ "handy" ];
+
+  launchd.agents.handy = {
+    command = "/usr/bin/open -gja Handy --args --start-hidden";
+    serviceConfig.RunAtLoad = true;
+  };
+}

modules/applications/handy/home/nixos.nix

@@ -0,0 +1,74 @@
+{
+  config,
+  inputs,
+  lib,
+  pkgs,
+  ...
+}:
+let
+  handy = inputs.handy.packages.${pkgs.stdenv.hostPlatform.system}.handy;
+  settingsFile = "${config.xdg.configHome}/com.pais.handy/settings_store.json";
+in
+{
+  home.packages = [
+    handy
+    pkgs.wtype
+  ];
+
+  # Handy has no disabled-shortcut setting. Empty bindings are rejected before
+  # registration, leaving niri and labwc as the sole owners of Ctrl+Space.
+  home.activation.disableHandyGlobalShortcuts = {
+    after = [ "writeBoundary" ];
+    before = [ ];
+    data = ''
+      settingsFile=${lib.escapeShellArg settingsFile}
+      mkdir -p "$(dirname "$settingsFile")"
+
+      if [ -f "$settingsFile" ]; then
+        ${lib.getExe pkgs.jq} \
+          '.settings.bindings.transcribe.current_binding = ""
+          | .settings.bindings.transcribe_with_post_process.current_binding = ""' \
+          "$settingsFile" > "$settingsFile.tmp"
+      else
+        ${lib.getExe pkgs.jq} -n '
+          {
+            settings: {
+              bindings: {
+                transcribe: {
+                  id: "transcribe",
+                  name: "Transcribe",
+                  description: "Converts your speech into text.",
+                  default_binding: "ctrl+space",
+                  current_binding: ""
+                },
+                transcribe_with_post_process: {
+                  id: "transcribe_with_post_process",
+                  name: "Transcribe with Post-Processing",
+                  description: "Converts your speech into text and applies AI post-processing.",
+                  default_binding: "ctrl+shift+space",
+                  current_binding: ""
+                }
+              }
+            }
+          }
+        ' > "$settingsFile.tmp"
+      fi
+
+      mv "$settingsFile.tmp" "$settingsFile"
+    '';
+  };
+
+  systemd.user.services.handy = {
+    Unit = {
+      Description = "Handy speech-to-text";
+      After = [ "graphical-session.target" ];
+      PartOf = [ "graphical-session.target" ];
+    };
+    Service = {
+      ExecStart = "${lib.getExe handy} --start-hidden";
+      Restart = "on-failure";
+      RestartSec = 5;
+    };
+    Install.WantedBy = [ "graphical-session.target" ];
+  };
+}

modules/applications/handy/meta.nix

@@ -0,0 +1,3 @@
+{
+  description = "Handy offline speech-to-text";
+}

modules/applications/huggingface-cli/home.nix

@@ -1,4 +0,0 @@
-{ pkgs, ... }:
-{
-  home.packages = [ pkgs.python314Packages.huggingface-hub ];
-}

modules/applications/labwc/home.nix

@@ -102,6 +102,8 @@ in
           (action "W-q" "Close")
           (action "W-f" "ToggleMaximize")
           (action "W-c" "Iconify")
+          (execute "W-Tab" "window-overview")
+          (execute "W-S-Tab" "window-overview --reverse")
           (action "W-Up" "Lower")
           (action "W-Down" "Raise")
           (action "W-Left" "NextWindow")
@@ -121,13 +123,14 @@ in
           (execute "W-s" "noctalia msg panel-toggle launcher")
           (execute "W-e" "nautilus --new-window")
           (execute "W-l" "loginctl lock-session")
-          (execute "W-v" "vicinae vicinae://launch/clipboard/history")
+          (execute "W-v" "vicinae vicinae://launch/clipboard/history?toggle=true")
           (execute "W-j" "nani-translate-primary")
           (execute "W-S-j" "nani-translate-ocr")
           (execute "W-C-j" "${lib.getExe' pkgs.xdg-utils "xdg-open"} naniapp://translate")
           (execute "W-space" "ghostty +toggle-quick-terminal")
           (execute "W-p" "wdisplays")
           (execute "W-z" "wl-find-cursor -c 0xCCFF453A -s 160 -d 1200")
+          (execute "C-space" "handy --toggle-transcription")
 
           # Function keys (sync with niri modules/applications/niri/home.nix)
           (execute "XF86AudioRaiseVolume" "noctalia msg volume-up")

modules/applications/labwc/nixos.nix

@@ -6,11 +6,16 @@
 }:
 let
   unstable = inputs.nixpkgs-unstable.legacyPackages.${pkgs.stdenv.hostPlatform.system};
+  labwc = unstable.labwc.overrideAttrs (oldAttrs: {
+    patches = (oldAttrs.patches or [ ]) ++ [
+      ./patches/remove-ext-workspace-output-on-destroy.patch
+    ];
+  });
 in
 {
   programs.labwc = {
     enable = true;
-    package = unstable.labwc;
+    package = labwc;
   };
 
   xdg.portal.config.labwc.default = [

modules/applications/labwc/patches/remove-ext-workspace-output-on-destroy.patch

@@ -0,0 +1,103 @@
+From: Codex <[email protected]>
+Subject: [PATCH] output: detach destroyed outputs from protocol handles
+
+The DRM backend destroys and recreates outputs when a session is paused and
+resumed. Remove the output from the ext-workspace group and the foreign
+toplevel handles before wlroots finishes it. Both protocols attach bind
+listeners to the output; leaving either listener behind makes
+wlr_output_finish() abort.
+
+---
+ src/foreign-toplevel/foreign.c     | 14 ++++++++++++++
+ src/output.c                        |  6 ++++++
+ include/foreign-toplevel/foreign.h  |  2 ++
+ 3 files changed, 22 insertions(+)
+
+diff --git a/src/output.c b/src/output.c
+index 2eab8ec..6f6e7ef 100644
+--- a/src/output.c
++++ b/src/output.c
+@@ -27,8 +27,9 @@
+ #include "common/macros.h"
+ #include "common/mem.h"
+ #include "common/scene-helpers.h"
+ #include "common/string-helpers.h"
+ #include "config/rcxml.h"
++#include "foreign-toplevel/foreign.h"
+ #include "labwc.h"
+ #include "layers.h"
+ #include "node.h"
+@@ -276,7 +277,15 @@ handle_output_destroy(struct wl_listener *listener, void *data)
+ 	struct output *output = wl_container_of(listener, output, destroy);
+ 	struct seat *seat = &server.seat;
+ 	regions_evacuate_output(output);
+ 	regions_destroy(seat, &output->regions);
++	wlr_ext_workspace_group_handle_v1_output_leave(
++		server.workspaces.ext_group, output->wlr_output);
++
++	struct view *view;
++	wl_list_for_each(view, &server.views, link) {
++		foreign_toplevel_remove_output(view->foreign_toplevel, output->wlr_output);
++	}
++
+ 	if (seat->overlay.active.output == output) {
+ 		overlay_finish(seat);
+ 	}
+@@ -297,7 +305,6 @@ handle_output_destroy(struct wl_listener *listener, void *data)
+ 		output->workspace_osd = NULL;
+ 	}
+ 
+-	struct view *view;
+ 	wl_list_for_each(view, &server.views, link) {
+ 		if (view->output == output) {
+ 			view_on_output_destroy(view);
+diff --git a/include/foreign-toplevel/foreign.h b/include/foreign-toplevel/foreign.h
+index 69a340a..d8ec9b4 100644
+--- a/include/foreign-toplevel/foreign.h
++++ b/include/foreign-toplevel/foreign.h
+@@ -3,11 +3,14 @@
+ #define LABWC_FOREIGN_TOPLEVEL_H
+ 
+ struct view;
++struct wlr_output;
+ struct foreign_toplevel;
+ 
+ struct foreign_toplevel *foreign_toplevel_create(struct view *view);
+ void foreign_toplevel_set_parent(struct foreign_toplevel *toplevel,
+ 	struct foreign_toplevel *parent);
++void foreign_toplevel_remove_output(struct foreign_toplevel *toplevel,
++	struct wlr_output *output);
+ void foreign_toplevel_destroy(struct foreign_toplevel *toplevel);
+ 
+ #endif /* LABWC_FOREIGN_TOPLEVEL_H */
+diff --git a/src/foreign-toplevel/foreign.c b/src/foreign-toplevel/foreign.c
+index 7f1ec8d..0f628a3 100644
+--- a/src/foreign-toplevel/foreign.c
++++ b/src/foreign-toplevel/foreign.c
+@@ -1,4 +1,5 @@
+ // SPDX-License-Identifier: GPL-2.0-only
+ #include "foreign-toplevel/foreign.h"
++#include <wlr/types/wlr_foreign_toplevel_management_v1.h>
+ #include <assert.h>
+ #include "common/mem.h"
+@@ -34,6 +34,18 @@ foreign_toplevel_set_parent(struct foreign_toplevel *toplevel, struct foreign_to
+ 		parent ? &parent->wlr_toplevel : NULL);
+ }
+ 
++void
++foreign_toplevel_remove_output(struct foreign_toplevel *toplevel,
++	struct wlr_output *output)
++{
++	if (!toplevel || !toplevel->wlr_toplevel.handle) {
++		return;
++	}
++
++	wlr_foreign_toplevel_handle_v1_output_leave(
++		toplevel->wlr_toplevel.handle, output);
++}
++
+ void
+ foreign_toplevel_destroy(struct foreign_toplevel *toplevel)
+ {
+-- 
+2.51.0

modules/applications/linux-wallpaperengine/home/controller.sh

@@ -0,0 +1,167 @@
+# shellcheck shell=bash
+
+set -o errexit -o nounset -o pipefail
+
+playlist_file="$1"
+default_id="$2"
+configuration_id="$3"
+shift 3
+
+state_dir="${XDG_RUNTIME_DIR:?}/linux-wallpaperengine"
+state_file="$state_dir/current"
+
+usage() {
+  printf '%s\n' \
+    'Usage: wallpaperengine-wallpaper COMMAND [ID]' \
+    '' \
+    'Commands:' \
+    '  select ID Select a declaratively configured ID for this session' \
+    '  next      Select the next configured ID' \
+    '  previous  Select the previous configured ID' \
+    '  list      List configured IDs and mark the selected one' \
+    '  current   Print the selected ID' \
+    '  restart   Restart the selected wallpaper' \
+    '  stop      Stop Wallpaper Engine for this session'
+}
+
+load_playlist() {
+  mapfile -t wallpaper_ids < <(awk '/^[0-9]+$/ && !seen[$0]++' "$playlist_file")
+  if [ "${#wallpaper_ids[@]}" -eq 0 ]; then
+    echo "wallpaperengine-wallpaper: no wallpaper IDs are configured in settings.nix" >&2
+    exit 1
+  fi
+}
+
+contains_id() {
+  local candidate="$1"
+  local id
+
+  for id in "${wallpaper_ids[@]}"; do
+    [ "$id" = "$candidate" ] && return 0
+  done
+  return 1
+}
+
+current_id() {
+  local saved_configuration=""
+  local saved_id=""
+  local -a saved_state=()
+
+  if [ -s "$state_file" ]; then
+    mapfile -t saved_state <"$state_file"
+    saved_configuration="${saved_state[0]:-}"
+    saved_id="${saved_state[1]:-}"
+  fi
+
+  if [ "$saved_configuration" = "$configuration_id" ] && contains_id "$saved_id"; then
+    printf '%s\n' "$saved_id"
+  else
+    printf '%s\n' "$default_id"
+  fi
+}
+
+select_id() {
+  local id="$1"
+
+  if ! contains_id "$id"; then
+    echo "wallpaperengine-wallpaper: ID is not declared in settings.nix: $id" >&2
+    exit 2
+  fi
+
+  mkdir -p "$state_dir"
+  printf '%s\n%s\n' "$configuration_id" "$id" >"$state_file"
+  systemctl --user restart linux-wallpaperengine.service
+}
+
+cycle() {
+  local step="$1"
+  local current
+  local index=0
+  local next_index
+
+  current=$(current_id)
+  for i in "${!wallpaper_ids[@]}"; do
+    if [ "${wallpaper_ids[$i]}" = "$current" ]; then
+      index="$i"
+      break
+    fi
+  done
+
+  next_index=$(((index + step + ${#wallpaper_ids[@]}) % ${#wallpaper_ids[@]}))
+  select_id "${wallpaper_ids[$next_index]}"
+}
+
+load_playlist
+
+command="${1:-}"
+if [ -z "$command" ]; then
+  usage
+  exit 2
+fi
+shift
+
+case "$command" in
+select)
+  [ "$#" -eq 1 ] || {
+    usage >&2
+    exit 2
+  }
+  select_id "$1"
+  ;;
+next)
+  [ "$#" -eq 0 ] || {
+    usage >&2
+    exit 2
+  }
+  cycle 1
+  ;;
+previous)
+  [ "$#" -eq 0 ] || {
+    usage >&2
+    exit 2
+  }
+  cycle -1
+  ;;
+list)
+  [ "$#" -eq 0 ] || {
+    usage >&2
+    exit 2
+  }
+  current=$(current_id)
+  for id in "${wallpaper_ids[@]}"; do
+    if [ "$id" = "$current" ]; then
+      printf '* %s\n' "$id"
+    else
+      printf '  %s\n' "$id"
+    fi
+  done
+  ;;
+current)
+  [ "$#" -eq 0 ] || {
+    usage >&2
+    exit 2
+  }
+  current_id
+  ;;
+restart)
+  [ "$#" -eq 0 ] || {
+    usage >&2
+    exit 2
+  }
+  systemctl --user restart linux-wallpaperengine.service
+  ;;
+stop)
+  [ "$#" -eq 0 ] || {
+    usage >&2
+    exit 2
+  }
+  systemctl --user stop linux-wallpaperengine.service
+  ;;
+help | -h | --help)
+  usage
+  ;;
+*)
+  usage >&2
+  exit 2
+  ;;
+esac

modules/applications/linux-wallpaperengine/home/launcher.sh

@@ -0,0 +1,57 @@
+# shellcheck shell=bash
+
+set -o errexit -o nounset -o pipefail
+
+playlist_file="$1"
+default_id="$2"
+configuration_id="$3"
+assets_dir="$4"
+workshop_dir="$5"
+scaling="$6"
+shift 6
+
+state_file="${XDG_RUNTIME_DIR:?}/linux-wallpaperengine/current"
+wallpaper_id="$default_id"
+saved_configuration=""
+saved_id=""
+saved_state=()
+outputs=()
+
+if [ -s "$state_file" ]; then
+  mapfile -t saved_state <"$state_file"
+  saved_configuration="${saved_state[0]:-}"
+  saved_id="${saved_state[1]:-}"
+
+  if [ "$saved_configuration" = "$configuration_id" ] &&
+    awk -v id="$saved_id" '$0 == id { found = 1 } END { exit !found }' "$playlist_file"; then
+    wallpaper_id="$saved_id"
+  fi
+fi
+
+wallpaper_path="$workshop_dir/$wallpaper_id"
+if [ ! -d "$wallpaper_path" ]; then
+  echo "linux-wallpaperengine: missing declared wallpaper: $wallpaper_path" >&2
+  exit 1
+fi
+
+if [ ! -d "$assets_dir" ]; then
+  echo "linux-wallpaperengine: missing Wallpaper Engine assets: $assets_dir" >&2
+  exit 1
+fi
+
+mapfile -t outputs < <(wlr-randr --json | jq -r '.[] | select(.enabled == true) | .name')
+if [ "${#outputs[@]}" -eq 0 ]; then
+  echo "linux-wallpaperengine: no enabled Wayland outputs were detected" >&2
+  exit 1
+fi
+
+engine_args=("$@" --assets-dir "$assets_dir")
+for output in "${outputs[@]}"; do
+  engine_args+=(
+    --screen-root "$output"
+    --bg "$wallpaper_path"
+    --scaling "$scaling"
+  )
+done
+
+exec linux-wallpaperengine "${engine_args[@]}"

modules/applications/linux-wallpaperengine/home/nixos.nix

@@ -0,0 +1,229 @@
+{
+  config,
+  lib,
+  pkgs,
+  ...
+}:
+let
+  settings = import ../settings.nix;
+  inherit (settings)
+    assetsDirectory
+    fps
+    mute
+    scaling
+    selectedWallpaperId
+    switchIntervalSeconds
+    wallpaperIds
+    workshopDirectory
+    ;
+
+  resolveHomePath =
+    path:
+    if lib.hasPrefix "~/" path then
+      "${config.home.homeDirectory}/${lib.removePrefix "~/" path}"
+    else if lib.hasPrefix "/" path then
+      path
+    else
+      "${config.home.homeDirectory}/${path}";
+
+  hasWallpapers = wallpaperIds != [ ];
+  defaultWallpaperId =
+    if selectedWallpaperId != null then
+      selectedWallpaperId
+    else if hasWallpapers then
+      lib.head wallpaperIds
+    else
+      "";
+  configurationId = builtins.hashString "sha256" (builtins.toJSON settings);
+  resolvedAssetsDirectory = resolveHomePath assetsDirectory;
+  resolvedWorkshopDirectory = resolveHomePath workshopDirectory;
+  playlist = pkgs.writeText "linux-wallpaperengine-playlist" (
+    lib.concatMapStringsSep "\n" (id: id) wallpaperIds + "\n"
+  );
+  engineArguments = lib.optional mute "--silent" ++ [
+    "--fps"
+    (toString fps)
+  ];
+
+  controller = pkgs.writeShellApplication {
+    name = "wallpaperengine-wallpaper";
+    runtimeInputs = [
+      pkgs.coreutils
+      pkgs.gawk
+      pkgs.systemd
+    ];
+    text = ''
+      exec ${lib.getExe pkgs.bash} ${./controller.sh} \
+        ${lib.escapeShellArg playlist} \
+        ${lib.escapeShellArg defaultWallpaperId} \
+        ${lib.escapeShellArg configurationId} \
+        "$@"
+    '';
+  };
+
+  mkVicinaeScript =
+    {
+      name,
+      title,
+      description,
+      command,
+      mode ? "compact",
+      message ? null,
+    }:
+    {
+      name = "vicinae/scripts/wallpaper-engine/${name}";
+      value = {
+        executable = true;
+        text = ''
+          #!${lib.getExe pkgs.bash}
+          # @vicinae.schemaVersion 1
+          # @vicinae.title ${title}
+          # @vicinae.description ${description}
+          # @vicinae.mode ${mode}
+          # @vicinae.icon 🖼️
+
+          ${lib.getExe controller} ${lib.escapeShellArg command}
+          ${lib.optionalString (message != null) "printf '%s\\n' ${lib.escapeShellArg message}"}
+        '';
+      };
+    };
+
+  launcher = pkgs.writeShellApplication {
+    name = "linux-wallpaperengine-launcher";
+    runtimeInputs = [
+      pkgs.coreutils
+      pkgs.gawk
+      pkgs.jq
+      pkgs.linux-wallpaperengine
+      pkgs.wlr-randr
+    ];
+    text = ''
+      exec ${lib.getExe pkgs.bash} ${./launcher.sh} \
+        ${lib.escapeShellArg playlist} \
+        ${lib.escapeShellArg defaultWallpaperId} \
+        ${lib.escapeShellArg configurationId} \
+        ${lib.escapeShellArg resolvedAssetsDirectory} \
+        ${lib.escapeShellArg resolvedWorkshopDirectory} \
+        ${lib.escapeShellArg scaling} \
+        ${lib.escapeShellArgs engineArguments}
+    '';
+  };
+in
+assert lib.assertMsg (lib.all (
+  id: builtins.isString id && builtins.match "[0-9]+" id != null
+) wallpaperIds) "linux-wallpaperengine: wallpaperIds must contain only numeric strings";
+assert lib.assertMsg (
+  lib.unique wallpaperIds == wallpaperIds
+) "linux-wallpaperengine: wallpaperIds must not contain duplicates";
+assert lib.assertMsg (
+  selectedWallpaperId == null || builtins.elem selectedWallpaperId wallpaperIds
+) "linux-wallpaperengine: selectedWallpaperId must be null or a member of wallpaperIds";
+assert lib.assertMsg (
+  switchIntervalSeconds == null || (builtins.isInt switchIntervalSeconds && switchIntervalSeconds > 0)
+) "linux-wallpaperengine: switchIntervalSeconds must be null or a positive integer";
+assert lib.assertMsg (
+  builtins.isInt fps && fps > 0
+) "linux-wallpaperengine: fps must be a positive integer";
+assert lib.assertMsg (
+  builtins.isString assetsDirectory && assetsDirectory != ""
+) "linux-wallpaperengine: assetsDirectory must be a non-empty string";
+assert lib.assertMsg (
+  builtins.isString workshopDirectory && workshopDirectory != ""
+) "linux-wallpaperengine: workshopDirectory must be a non-empty string";
+assert lib.assertMsg (builtins.elem scaling [
+  "default"
+  "fill"
+  "fit"
+  "stretch"
+]) "linux-wallpaperengine: scaling must be default, fill, fit, or stretch";
+{
+  home.packages = [
+    controller
+    pkgs.linux-wallpaperengine
+  ];
+
+  xdg.dataFile = builtins.listToAttrs [
+    (mkVicinaeScript {
+      name = "reload";
+      title = "Reload Wallpaper Engine";
+      description = "Restart the active Wallpaper Engine background";
+      command = "restart";
+      message = "Wallpaper Engine reloaded";
+    })
+    (mkVicinaeScript {
+      name = "next";
+      title = "Next Wallpaper Engine Wallpaper";
+      description = "Switch to the next configured Wallpaper Engine background";
+      command = "next";
+      message = "Switched to the next Wallpaper Engine wallpaper";
+    })
+    (mkVicinaeScript {
+      name = "previous";
+      title = "Previous Wallpaper Engine Wallpaper";
+      description = "Switch to the previous configured Wallpaper Engine background";
+      command = "previous";
+      message = "Switched to the previous Wallpaper Engine wallpaper";
+    })
+    (mkVicinaeScript {
+      name = "list";
+      title = "List Wallpaper Engine Wallpapers";
+      description = "Show the configured Wallpaper Engine backgrounds";
+      command = "list";
+      mode = "fullOutput";
+    })
+    (mkVicinaeScript {
+      name = "current";
+      title = "Current Wallpaper Engine Wallpaper";
+      description = "Show the active Wallpaper Engine background";
+      command = "current";
+    })
+    (mkVicinaeScript {
+      name = "stop";
+      title = "Stop Wallpaper Engine";
+      description = "Stop Wallpaper Engine for this session";
+      command = "stop";
+      message = "Wallpaper Engine stopped";
+    })
+  ];
+
+  systemd.user.services = lib.optionalAttrs hasWallpapers {
+    linux-wallpaperengine = {
+      Unit = {
+        Description = "Linux Wallpaper Engine";
+        After = [ "graphical-session.target" ];
+        PartOf = [ "graphical-session.target" ];
+      };
+      Service = {
+        ExecStart = lib.getExe launcher;
+        Restart = "on-abnormal";
+      };
+      Install.WantedBy = [ "graphical-session.target" ];
+    };
+
+    linux-wallpaperengine-switch = {
+      Unit.Description = "Switch Linux Wallpaper Engine wallpaper";
+      Service = {
+        Type = "oneshot";
+        ExecStart = "${lib.getExe controller} next";
+      };
+    };
+  };
+
+  systemd.user.timers =
+    lib.optionalAttrs
+      (hasWallpapers && builtins.length wallpaperIds > 1 && switchIntervalSeconds != null)
+      {
+        linux-wallpaperengine-switch = {
+          Unit = {
+            Description = "Periodically switch Linux Wallpaper Engine wallpaper";
+            PartOf = [ "graphical-session.target" ];
+          };
+          Timer = {
+            OnActiveSec = "${toString switchIntervalSeconds}s";
+            OnUnitActiveSec = "${toString switchIntervalSeconds}s";
+            Unit = "linux-wallpaperengine-switch.service";
+          };
+          Install.WantedBy = [ "graphical-session.target" ];
+        };
+      };
+}

modules/applications/linux-wallpaperengine/meta.nix

@@ -0,0 +1,3 @@
+{
+  description = "Wallpaper Engine backgrounds for Linux";
+}

modules/applications/linux-wallpaperengine/settings.nix

@@ -0,0 +1,23 @@
+{
+  assetsDirectory = "~/.local/share/Steam/steamapps/common/wallpaper_engine/assets";
+  workshopDirectory = "~/.local/share/Steam/steamapps/workshop/content/431960";
+
+  wallpaperIds = [
+    "2833810156"
+    "2834355367"
+    "2836628501"
+    "2845095254"
+    "2859848175"
+    "2861661119"
+    "2982896307"
+  ];
+
+  # null selects the first ID above.
+  selectedWallpaperId = null;
+  # Set a number such as 300 to rotate through multiple IDs.
+  switchIntervalSeconds = 300;
+
+  fps = 30;
+  mute = true;
+  scaling = "fill";
+}

modules/applications/nautilus/home/nixos.nix

@@ -162,6 +162,14 @@ in
     "file://${config.home.homeDirectory}/Desktop Desktop"
     "file://${config.home.homeDirectory}/Pictures Pictures"
     "file://${config.home.homeDirectory}/Downloads Downloads"
-    "file://${config.home.homeDirectory}/Projects Projects"
+    "file://${config.home.homeDirectory}/projects projects"
   ];
+
+  home.activation.createProjectsDirectory = {
+    after = [ "writeBoundary" ];
+    before = [ ];
+    data = ''
+      $DRY_RUN_CMD mkdir -p "$HOME/projects"
+    '';
+  };
 }

modules/applications/niri/home/nixos.nix

@@ -7,8 +7,6 @@ in
 
     binds = keybindings // {
       # niri window or focus move
-      "Mod+MouseMiddle".action.toggle-window-floating = [ ];
-
       "Mod+Shift+Left" = {
         action.focus-monitor-left = [ ];
         hotkey-overlay.title = "Focus Monitor Left";
@@ -26,18 +24,6 @@ in
         hotkey-overlay.title = "Focus Monitor Down";
       };
 
-      # Use the modifier combinations in the opposite direction from Niri's defaults.
-      "Mod+WheelScrollDown".action.focus-column-right = [ ];
-      "Mod+WheelScrollUp".action.focus-column-left = [ ];
-      "Mod+Shift+WheelScrollDown" = {
-        cooldown-ms = 150;
-        action.focus-workspace-down = [ ];
-      };
-      "Mod+Shift+WheelScrollUp" = {
-        cooldown-ms = 150;
-        action.focus-workspace-up = [ ];
-      };
-
       "Mod+Shift+Ctrl+Left" = {
         action.move-window-to-monitor-left = [ ];
         hotkey-overlay.title = "Move Window to Monitor Left";
@@ -55,6 +41,24 @@ in
         hotkey-overlay.title = "Move Window to Monitor Down";
       };
 
+      "Mod+Tab" = {
+        repeat = false;
+        action.spawn = [
+          "window-overview"
+          "--hold"
+        ];
+        hotkey-overlay.title = "Window Overview: Next";
+      };
+      "Mod+Shift+Tab" = {
+        repeat = false;
+        action.spawn = [
+          "window-overview"
+          "--hold"
+          "--reverse"
+        ];
+        hotkey-overlay.title = "Window Overview: Previous";
+      };
+
       "Print".action.spawn = [
         "screenshot"
         "region"
@@ -106,7 +110,7 @@ in
       "Mod+V" = {
         action.spawn = [
           "vicinae"
-          "vicinae://launch/clipboard/history"
+          "vicinae://launch/clipboard/history?toggle=true"
         ];
         hotkey-overlay.title = "Clipboard History";
       };
@@ -151,6 +155,13 @@ in
         ];
         hotkey-overlay.title = "Find Cursor";
       };
+      "Ctrl+Space" = {
+        action.spawn = [
+          "handy"
+          "--toggle-transcription"
+        ];
+        hotkey-overlay.title = "Toggle Handy Transcription";
+      };
 
       # Function keys (sync with labwc modules/applications/labwc/home.nix)
       "XF86AudioRaiseVolume".action.spawn = [

modules/applications/nix-fleet/meta.nix

@@ -1,3 +0,0 @@
-{
-  description = "Fleet build and deploy command-line tools";
-}

modules/applications/nix-fleet/nixos.nix

@@ -1,63 +0,0 @@
-{
-  inputs,
-  pkgs,
-  primaryUser,
-  ...
-}:
-let
-  system = pkgs.stdenv.hostPlatform.system;
-  deployRs = inputs.deploy-rs.packages.${system}.default;
-
-  fleetBuild = pkgs.writeShellApplication {
-    name = "fleet-build";
-    runtimeInputs = [
-      pkgs.jq
-      pkgs.nix
-    ];
-    text = ''
-      flake_ref="''${FLAKE:-/home/${primaryUser}/dotfiles}"
-
-      if (( $# == 0 )); then
-        # Keep this pipeline inside command substitution so pipefail and
-        # writeShellApplication's errexit propagate evaluation failures.
-        host_lines="$(
-          nix eval --json "$flake_ref#nixosConfigurations" \
-            --apply 'configs: builtins.attrNames configs' |
-            jq -r '.[] | select(. != "installer")'
-        )"
-        if [[ -z "$host_lines" ]]; then
-          echo "No deployable NixOS hosts found in $flake_ref" >&2
-          exit 1
-        fi
-        mapfile -t hosts <<< "$host_lines"
-      else
-        hosts=("$@")
-      fi
-
-      for host in "''${hosts[@]}"; do
-        nix build \
-          --out-link "/var/lib/nix-fleet/roots/build/$host" \
-          "$flake_ref#nixosConfigurations.$host.config.system.build.toplevel"
-      done
-    '';
-  };
-
-  fleetDeploy = pkgs.writeShellApplication {
-    name = "fleet-deploy";
-    runtimeInputs = [ deployRs ];
-    text = ''
-      cd "''${FLAKE:-/home/${primaryUser}/dotfiles}" || exit 1
-
-      exec deploy \
-        --keep-result \
-        --result-path /var/lib/nix-fleet/roots/deploy \
-        "$@"
-    '';
-  };
-in
-{
-  environment.systemPackages = [
-    fleetBuild
-    fleetDeploy
-  ];
-}

modules/applications/noctalia/codexbar.nix

@@ -1,6 +1,6 @@
 { lib, pkgs }:
 let
-  version = "0.56.0";
+  version = "0.46.0";
   architecture =
     if pkgs.stdenv.hostPlatform.isx86_64 then
       "x86_64"
@@ -10,8 +10,8 @@ let
       throw "CodexBar CLI is only packaged for x86_64-linux and aarch64-linux";
   hash =
     {
-      x86_64 = "sha256-hzCnAyiizm8ZDfE1ONEP6S2Pdnskclm+XdDBBhEYVqE=";
+      x86_64 = "sha256-yMrOpu1WIv2sGVgvY9qf2XCoX2AXMSqR2b8bQDRU6os=";
-      aarch64 = "sha256-vfcgDEFpORPymcRYmlqvsjhV4pU7lNC8Vd9FDPI9UjM=";
+      aarch64 = "sha256-pCp3NOlxFN6zeH67W04WGSPbUae+ktzR5vEunWqu00g=";
     }
     .${architecture};
 in

modules/applications/noctalia/home.nix

@@ -13,6 +13,15 @@ let
       --replace-fail "@codexbarPath@" "${lib.getExe codexbar}"
   '';
 
+  noctaliaPatched =
+    inputs.noctalia.packages.${pkgs.stdenv.hostPlatform.system}.default.overrideAttrs
+      (oldAttrs: {
+        patches = (oldAttrs.patches or [ ]) ++ [
+          ./patches/window-switcher-labwc.patch
+          ./patches/taskbar-overview-hook.patch
+        ];
+      });
+
   wallpapers = pkgs.fetchFromGitHub {
     owner = "moons-14";
     repo = "wallpapers";
@@ -42,7 +51,7 @@ in
   programs.noctalia = {
     enable = true;
 
-    package = inputs.noctalia.packages.${pkgs.stdenv.hostPlatform.system}.default;
+    package = noctaliaPatched;
 
     systemd.enable = true;
 
@@ -157,7 +166,7 @@ in
         network-connection = {
           type = "custom_button";
           glyph = "access-point";
-          actions.left = "exec nm-connection-editor";
+          actions.left = "nm-connection-editor";
         };
         tray = {
           type = "tray";
@@ -178,7 +187,7 @@ in
             "google-chrome"
             "code"
             "dev.zed.Zed"
-            "chatgpt"
+            "codex-desktop"
             "vesktop"
           ];
           show_all_outputs = true;

modules/applications/noctalia/meta.nix

@@ -2,6 +2,10 @@
 {
   description = "Noctalia Wayland desktop shell";
 
+  includes = [
+    "applications.window-overview"
+  ];
+
   imports = {
     nixos = [ inputs.noctalia.nixosModules.default ];
     home = [ inputs.noctalia.homeModules.default ];

modules/applications/noctalia/patches/taskbar-overview-hook.patch

@@ -0,0 +1,43 @@
+diff --git a/src/shell/bar/widgets/taskbar_widget.cpp b/src/shell/bar/widgets/taskbar_widget.cpp
+--- a/src/shell/bar/widgets/taskbar_widget.cpp
++++ b/src/shell/bar/widgets/taskbar_widget.cpp
+@@ -5,6 +5,7 @@
+ #include "compositors/workspace_backend.h"
+ #include "config/config_service.h"
+ #include "core/deferred_call.h"
++#include "core/process/process.h"
+ #include "i18n/i18n.h"
+ #include "render/core/color.h"
+ #include "render/core/renderer.h"
+@@ -36,6 +37,18 @@
+ 
+ namespace {
+ 
++  [[nodiscard]] bool launchTaskbarOverview(const std::string& appId) {
++    constexpr const char* command = "noctalia-taskbar-overview";
++    if (appId.empty() || !process::commandExists(command)) {
++      return false;
++    }
++    return process::runAsync({
++        command,
++        "--app-id",
++        appId.c_str(),
++    });
++  }
++
+   // Integer centering; optional odd spare pixel on the end side (right/bottom).
+   [[nodiscard]] float centeredOffset(float extent, float content, float inset = 0.0F, bool oddSpareOnEnd = true) {
+     const float inner = std::max(0.0F, extent - inset * 2.0F);
+@@ -373,6 +386,12 @@ void TaskbarWidget::activateOrLaunchPinned(const TaskModel& task) {
+     return;
+   }
+ 
++  const std::string overviewAppId =
++      !task.appId.empty() ? task.appId : (!task.desktopEntryId.empty() ? task.desktopEntryId : task.idLower);
++  if (launchTaskbarOverview(overviewAppId)) {
++    return;
++  }
++
+   const std::string cycleKey = !task.desktopEntryId.empty() ? task.desktopEntryId : task.idLower;
+   std::size_t& cursor = m_groupedAppCycleCursor[cycleKey];
+   if (cursor >= windows.size()) {

modules/applications/noctalia/patches/window-switcher-labwc.patch

@@ -0,0 +1,26 @@
+diff --git a/src/shell/switcher/window_switcher.cpp b/src/shell/switcher/window_switcher.cpp
+--- a/src/shell/switcher/window_switcher.cpp
++++ b/src/shell/switcher/window_switcher.cpp
+@@ -286,12 +286,19 @@ indexLiveToplevelsByWindowId(const CompositorPlatform& platform, std::unordered_
+           continue;
+         }
+ 
+-        const auto mappedId = platform.compositorWindowIdForToplevelInfo(info);
+-        if (!mappedId.has_value() || mappedId->empty()) {
+-          continue;
++        std::string key;
++        if (const auto mappedId = platform.compositorWindowIdForToplevelInfo(info);
++            mappedId.has_value() && !mappedId->empty()) {
++          key = canonicalWindowId(*mappedId);
+         }
+-        const std::string key = canonicalWindowId(*mappedId);
++
++        // Generic wlroots compositors such as labwc do not provide a
++        // compositor-specific window ID. The wlr toplevel handle is stable
++        // for the lifetime of the window and is sufficient for switcher identity.
++        if (key.empty() && wlrHandle != 0) {
++          key = "toplevel:" + std::to_string(wlrHandle);
++        }
+         if (key.empty()) {
+           continue;
+         }

modules/applications/opencode/home.nix

@@ -2,19 +2,5 @@
 {
   home.packages = [
     inputs.llm-agents.packages.${pkgs.stdenv.hostPlatform.system}.opencode
-    inputs.llm-agents.packages.${pkgs.stdenv.hostPlatform.system}.oh-my-opencode
   ];
-
-  home.file.".omo/omo.jsonc".text = builtins.toJSON {
-    agents = {
-      sisyphus.model = "openai/gpt-5.6-sol";
-      hephaestus.model = "openai/gpt-5.6-terra";
-      prometheus.model = "openai/gpt-5.6-terra";
-      oracle.model = "openai/gpt-5.6-terra";
-      momus.model = "openai/gpt-5.6-terra";
-      librarian.model = "openai/gpt-5.6-luna";
-      explore.model = "openai/gpt-5.6-luna";
-      atlas.model = "openai/gpt-5.6-luna";
-    };
-  };
 }

modules/applications/ssh/home/common.nix

@@ -24,9 +24,6 @@ lib.mkMerge [
       };
 
       extraConfig = ''
-        Match exec "test -n \"$SSH_AUTH_SOCK\" && test -S \"$SSH_AUTH_SOCK\""
-          IdentityAgent $SSH_AUTH_SOCK
-
         Match exec "test -S %d/.1password/agent.sock"
           IdentityAgent %d/.1password/agent.sock
       '';

modules/applications/vicinae/home/common.nix

@@ -10,8 +10,6 @@ in
   programs.vicinae = {
     enable = true;
 
-    enableChromeIntegration = false;
-
     settings = {
       font.size = 11;
       close_on_focus_loss = true;

modules/applications/vicinae/home/nixos.nix

@@ -8,6 +8,9 @@ let
 in
 {
   programs.vicinae = {
+
+    package = pkgs.vicinae;
+
     systemd = {
       enable = true;
       autoStart = true;

modules/applications/vscode/home/common.nix

@@ -118,7 +118,7 @@ let
       ];
       userSettings = {
         "nix.enableLanguageServer" = true;
-        "nix.serverPath" = "nil";
+        "nix.serverPath" = "nixd";
         "nix.serverSettings" = {
           nixd = {
             formatting.command = [ "nixfmt" ];

modules/applications/window-overview/home/nixos.nix

@@ -0,0 +1,7 @@
+{ pkgs, ... }:
+let
+  windowOverview = pkgs.callPackage ../package.nix { };
+in
+{
+  home.packages = [ windowOverview ];
+}

modules/applications/window-overview/meta.nix

@@ -0,0 +1,7 @@
+{
+  description = "Fullscreen Wayland window overview with captured previews";
+
+  includes = [
+    "systems.wayland"
+  ];
+}

modules/applications/window-overview/package.nix

@@ -0,0 +1,77 @@
+{
+  lib,
+  fetchCrate,
+  libgbm,
+  libglvnd,
+  libxkbcommon,
+  jq,
+  makeWrapper,
+  pkg-config,
+  rustPlatform,
+  wayland,
+  wl-clipboard,
+}:
+rustPlatform.buildRustPackage rec {
+  pname = "window-overview";
+  version = "1.5.0";
+
+  src = fetchCrate {
+    pname = "wlr-chooser";
+    inherit version;
+    hash = "sha256-Jb59m1z+2G5istcbC0sg9jRVcC/bQh/OY0ny9OdTsdw=";
+  };
+
+  patches = [
+    ./patches/window-overview.patch
+    ./patches/niri-backend.patch
+  ];
+
+  cargoHash = "sha256-KBLgtS8ULrmsOf6BN5SlkVQyXB12utvr/KonnKnCTCM=";
+
+  nativeBuildInputs = [
+    makeWrapper
+    pkg-config
+  ];
+
+  buildInputs = [
+    libgbm
+    libglvnd
+    libxkbcommon
+    wayland
+  ];
+
+  cargoBuildFlags = [
+    "--bin"
+    "wlr-switcher"
+  ];
+
+  postInstall = ''
+    mv "$out/bin/wlr-switcher" "$out/bin/.window-overview-wrapped"
+    makeWrapper "$out/bin/.window-overview-wrapped" "$out/bin/window-overview" \
+      --add-flags "--layout grid" \
+      --prefix PATH : "${
+        lib.makeBinPath [
+          jq
+          wl-clipboard
+        ]
+      }" \
+      --prefix LD_LIBRARY_PATH : "${
+        lib.makeLibraryPath [
+          libgbm
+          libglvnd
+        ]
+      }:/run/opengl-driver/lib"
+    ln -s window-overview "$out/bin/noctalia-taskbar-overview"
+  '';
+
+  meta = {
+    description = "Fullscreen Wayland window overview with captured previews";
+    homepage = "https://github.com/sjourdois/wlr-utils";
+    license = with lib.licenses; [
+      asl20
+      mit
+    ];
+    mainProgram = "window-overview";
+    platforms = lib.platforms.linux;
+  };
+}

modules/applications/window-overview/patches/niri-backend.patch

@@ -0,0 +1,431 @@
+--- a/src/chooser_cli.rs
++++ b/src/chooser_cli.rs
+@@ -81,6 +81,7 @@
+         initial_cycle: None,
+         snapshot: false,
+         cycle_socket: None,
++        niri_backend: false,
+     };
+ 
+     match run_overlay(opts, t0) {
+--- a/src/lib.rs
++++ b/src/lib.rs
+@@ -65,7 +65,14 @@
+     // must connect, enumerate, and open sessions before any thumbnail appears.
+     let (tx, rx) = mpsc::channel();
+     let snapshot = opts.snapshot;
+-    std::thread::spawn(move || ui::capture_thread(tx, snapshot));
++    let niri_backend = opts.niri_backend;
++    std::thread::spawn(move || {
++        if niri_backend {
++            ui::niri_capture_thread(tx);
++        } else {
++            ui::capture_thread(tx, snapshot);
++        }
++    });
+     shell::tlog(t0, "capture-thread spawned");
+ 
+     let out: ui::Outcome = Arc::new(Mutex::new(None));
+--- a/src/switcher_cli.rs
++++ b/src/switcher_cli.rs
+@@ -88,6 +88,7 @@
+     let t0 = Instant::now();
+     let cli = Cli::parse();
+     i18n::init();
++    let niri_backend = std::env::var_os("NIRI_SOCKET").is_some();
+ 
+     if cli.doctor {
+         if let Err(e) = wlr_capture::doctor::report("wlr-switcher", env!("CARGO_PKG_VERSION")) {
+@@ -129,32 +130,50 @@
+         initial_cycle: Some(!cli.reverse),
+         snapshot: true,
+         cycle_socket: Some(cycle_socket),
++        niri_backend,
+     };
+ 
+     // Pre-flight: wlr-switcher switches *windows*, which need the foreign-toplevel
+     // capture source (wlroots >= 0.20 / Sway >= 1.12). On older compositors connect()
+     // now succeeds for screen-only capture, but there are no windows to offer — so say
+     // so clearly and exit, instead of showing an empty dimmed overlay (issue #1).
+-    match wl::Client::connect() {
+-        Ok(client) if !client.can_capture_windows() => {
+-            eprintln!("{}", tr!("capture-no-window"));
+-            std::process::exit(2);
+-        }
+-        Ok(_) => {}
+-        Err(e) => {
+-            eprintln!("{}", tr!("error", error = format!("{e:#}")));
+-            std::process::exit(2);
++    if !niri_backend {
++        match wl::Client::connect() {
++            Ok(client) if !client.can_capture_windows() => {
++                eprintln!("{}", tr!("capture-no-window"));
++                std::process::exit(2);
++            }
++            Ok(_) => {}
++            Err(e) => {
++                eprintln!("{}", tr!("error", error = format!("{e:#}")));
++                std::process::exit(2);
++            }
+         }
+     }
+ 
+     match run_overlay(opts, t0) {
+         Ok(Some(sel)) => {
+             // Focus the picked window (outputs aren't focusable, so ignore them).
+-            if sel.is_window
+-                && let Err(e) = wl::activate_window(&sel.app_id, &sel.title, sel.dup_index)
+-            {
+-                eprintln!("{}", tr!("error", error = format!("{e:#}")));
+-                std::process::exit(2);
++            if sel.is_window {
++                let result: anyhow::Result<()> = if niri_backend {
++                    let output = std::process::Command::new("niri")
++                        .args(["msg", "action", "focus-window", "--id", &sel.identifier])
++                        .output();
++                    match output {
++                        Ok(output) if output.status.success() => Ok(()),
++                        Ok(output) => Err(anyhow::anyhow!(
++                            "{}",
++                            String::from_utf8_lossy(&output.stderr).trim()
++                        )),
++                        Err(e) => Err(e.into()),
++                    }
++                } else {
++                    wl::activate_window(&sel.app_id, &sel.title, sel.dup_index).map_err(Into::into)
++                };
++                if let Err(e) = result {
++                    eprintln!("{}", tr!("error", error = format!("{e:#}")));
++                    std::process::exit(2);
++                }
+             }
+         }
+         Ok(None) => std::process::exit(1), // cancelled
+--- a/src/ui.rs
++++ b/src/ui.rs
+@@ -6,7 +6,9 @@
+ 
+ use crate::tr;
+ use std::collections::{HashMap, HashSet};
++use std::io::Write;
+ use std::path::PathBuf;
++use std::process::{Command, Stdio};
+ use std::sync::mpsc::{Receiver, Sender};
+ use std::sync::{Arc, Mutex};
+ use std::time::{Duration, Instant};
+@@ -366,6 +368,288 @@
+     }
+ }
+ 
++#[derive(Clone)]
++struct NiriWindow {
++    id: String,
++    app_id: String,
++    title: String,
++}
++
++enum ClipboardSnapshot {
++    Empty,
++    Content { mime: String, data: Vec<u8> },
++    Unavailable,
++}
++
++fn save_clipboard() -> ClipboardSnapshot {
++    let Ok(types) = Command::new("wl-paste").arg("--list-types").output() else {
++        return ClipboardSnapshot::Unavailable;
++    };
++    if !types.status.success() {
++        return ClipboardSnapshot::Empty;
++    }
++    let types = String::from_utf8_lossy(&types.stdout);
++    let offered: Vec<&str> = types.lines().filter(|line| !line.is_empty()).collect();
++    let Some(mime) = offered
++        .iter()
++        .copied()
++        .find(|mime| *mime == "text/plain;charset=utf-8")
++        .or_else(|| offered.first().copied())
++    else {
++        return ClipboardSnapshot::Empty;
++    };
++    let Ok(data) = Command::new("wl-paste")
++        .args(["--type", mime])
++        .output()
++    else {
++        return ClipboardSnapshot::Unavailable;
++    };
++    if !data.status.success() {
++        return ClipboardSnapshot::Unavailable;
++    }
++    ClipboardSnapshot::Content {
++        mime: mime.to_owned(),
++        data: data.stdout,
++    }
++}
++
++fn restore_clipboard(snapshot: ClipboardSnapshot) {
++    match snapshot {
++        ClipboardSnapshot::Empty => {
++            let _ = Command::new("wl-copy").arg("--clear").status();
++        }
++        ClipboardSnapshot::Content { mime, data } => {
++            let Ok(mut copy) = Command::new("wl-copy")
++                .args(["--type", &mime])
++                .stdin(Stdio::piped())
++                .spawn()
++            else {
++                return;
++            };
++            if let Some(mut stdin) = copy.stdin.take() {
++                let _ = stdin.write_all(&data);
++            }
++            let _ = copy.wait();
++        }
++        ClipboardSnapshot::Unavailable => {}
++    }
++}
++
++/// Decode one field emitted by jq's `@tsv` formatter. It escapes the only
++/// characters that would otherwise make the line-oriented transport ambiguous.
++fn unescape_tsv(value: &str) -> String {
++    let mut decoded = String::with_capacity(value.len());
++    let mut chars = value.chars();
++    while let Some(ch) = chars.next() {
++        if ch != '\\' {
++            decoded.push(ch);
++            continue;
++        }
++        match chars.next() {
++            Some('t') => decoded.push('\t'),
++            Some('r') => decoded.push('\r'),
++            Some('n') => decoded.push('\n'),
++            Some('\\') => decoded.push('\\'),
++            Some(other) => {
++                decoded.push('\\');
++                decoded.push(other);
++            }
++            None => decoded.push('\\'),
++        }
++    }
++    decoded
++}
++
++/// Ask niri for its toplevel list. niri does not implement the
++/// ext-image-copy-capture window protocol, so its IPC is the source of both the
++/// stable window id and the metadata used by this backend.
++fn niri_windows() -> Result<Vec<NiriWindow>, String> {
++    let response = Command::new("niri")
++        .args(["msg", "-j", "windows"])
++        .output()
++        .map_err(|e| format!("could not run niri msg: {e}"))?;
++    if !response.status.success() {
++        return Err(String::from_utf8_lossy(&response.stderr).trim().to_owned());
++    }
++
++    let mut jq = Command::new("jq")
++        .args([
++            "-r",
++            ".[] | [(.id | tostring), (.app_id // \"\"), (.title // \"\")] | @tsv",
++        ])
++        .stdin(Stdio::piped())
++        .stdout(Stdio::piped())
++        .stderr(Stdio::piped())
++        .spawn()
++        .map_err(|e| format!("could not run jq: {e}"))?;
++    jq.stdin
++        .take()
++        .ok_or_else(|| String::from("jq stdin was unavailable"))?
++        .write_all(&response.stdout)
++        .map_err(|e| format!("could not pass niri window list to jq: {e}"))?;
++    let output = jq
++        .wait_with_output()
++        .map_err(|e| format!("could not read jq output: {e}"))?;
++    if !output.status.success() {
++        return Err(String::from_utf8_lossy(&output.stderr).trim().to_owned());
++    }
++
++    let text = String::from_utf8(output.stdout)
++        .map_err(|e| format!("niri window list was not UTF-8: {e}"))?;
++    let mut windows = Vec::new();
++    for line in text.lines() {
++        let mut fields = line.splitn(3, '\t');
++        let Some(id) = fields.next() else { continue };
++        let Some(app_id) = fields.next() else { continue };
++        let Some(title) = fields.next() else { continue };
++        windows.push(NiriWindow {
++            id: id.to_owned(),
++            app_id: unescape_tsv(app_id),
++            title: unescape_tsv(title),
++        });
++    }
++    windows.sort_by(|a, b| {
++        a.app_id
++            .to_lowercase()
++            .cmp(&b.app_id.to_lowercase())
++            .then_with(|| a.title.to_lowercase().cmp(&b.title.to_lowercase()))
++    });
++    Ok(windows)
++}
++
++fn niri_window_source(w: &NiriWindow, dup_index: usize) -> Source {
++    let is_system = w.app_id.is_empty();
++    let (title, subtitle) = if is_system {
++        (w.title.clone(), String::new())
++    } else {
++        (w.app_id.clone(), w.title.clone())
++    };
++    Source {
++        key: w.id.clone(),
++        token: format!("Window: {}", w.id),
++        filter: format!("{} {}", w.app_id, w.title).to_lowercase(),
++        title,
++        subtitle,
++        is_window: true,
++        is_system,
++        app_id: w.app_id.clone(),
++        win_title: w.title.clone(),
++        dup_index,
++    }
++}
++
++/// Capture a static overview through niri's IPC. This is deliberately separate
++/// from the generic Wayland backend: niri can render any toplevel by id (even an
++/// occluded one), but does not advertise ext-image-copy-capture.
++pub fn niri_capture_thread(tx: Sender<Msg>) {
++    let windows = match niri_windows() {
++        Ok(windows) => windows,
++        Err(e) => {
++            eprintln!("niri overview backend: {e}");
++            return;
++        }
++    };
++
++    let mut dup: HashMap<(String, String), usize> = HashMap::new();
++    let mut current = Vec::with_capacity(windows.len());
++    for window in windows {
++        let e = dup
++            .entry((window.app_id.clone(), window.title.clone()))
++            .or_insert(0);
++        let source = niri_window_source(&window, *e);
++        *e += 1;
++        current.push((source, window));
++    }
++    if tx
++        .send(Msg::Sources(
++            current.iter().map(|(source, _)| source.clone()).collect(),
++        ))
++        .is_err()
++    {
++        return;
++    }
++
++    let capture_dir = wlr_capture::paths::runtime_dir().join(format!(
++        "window-overview-niri-{}",
++        std::process::id()
++    ));
++    if let Err(e) = std::fs::create_dir_all(&capture_dir) {
++        eprintln!("niri overview backend: could not create capture directory: {e}");
++        return;
++    }
++    // niri's screenshot action also sets the clipboard. Preserve the existing
++    // selection so opening the overview does not unexpectedly replace it.
++    let clipboard = save_clipboard();
++
++    for (source, window) in current {
++        if let Some(path) = icons::resolve(&window.app_id)
++            && let Some((w, h, rgba)) = icons::load(&path, 128)
++            && tx
++                .send(Msg::Icon {
++                    key: source.key.clone(),
++                    w: w as usize,
++                    h: h as usize,
++                    rgba,
++                })
++                .is_err()
++        {
++            break;
++        }
++
++        let path = capture_dir.join(format!("{}.png", window.id));
++        let command = Command::new("niri")
++            .args(["msg", "action", "screenshot-window", "--id"])
++            .arg(&window.id)
++            .args(["--write-to-disk", "true", "--show-pointer", "false", "--path"])
++            .arg(&path)
++            .output();
++        let Ok(output) = command else {
++            continue;
++        };
++        if !output.status.success() {
++            eprintln!(
++                "niri overview backend: could not capture window {}: {}",
++                window.id,
++                String::from_utf8_lossy(&output.stderr).trim()
++            );
++            continue;
++        }
++
++        // niri encodes PNGs off the compositor thread, after acknowledging the
++        // IPC action. Wait briefly for that completion without delaying the UI.
++        let mut bytes = None;
++        for _ in 0..200 {
++            match std::fs::read(&path) {
++                Ok(data) => {
++                    bytes = Some(data);
++                    break;
++                }
++                Err(_) => std::thread::sleep(Duration::from_millis(10)),
++            }
++        }
++        let Some(bytes) = bytes else { continue };
++        let Ok(image) = image::load_from_memory_with_format(&bytes, image::ImageFormat::Png) else {
++            continue;
++        };
++        let image = image.into_rgba8();
++        let (w, h, rgba) = thumbnail_rgba(image.width(), image.height(), image.into_raw());
++        if tx
++            .send(Msg::Thumb {
++                key: source.key,
++                w,
++                h,
++                rgba,
++            })
++            .is_err()
++        {
++            break;
++        }
++        let _ = std::fs::remove_file(path);
++    }
++    let _ = std::fs::remove_dir(capture_dir);
++    restore_clipboard(clipboard);
++}
++
+ /// Cheap content fingerprint of a frame (subsampled FNV-1a), to tell whether a
+ /// capture actually changed between rounds — used by the headless bench.
+ fn quick_hash(rgba: &[u8]) -> u64 {
+@@ -515,11 +799,14 @@
+ 
+ /// Downscale a capture to a thumbnail (max side `THUMB_MAX`), never upscaling.
+ fn thumbnail(img: wl::CapturedImage) -> (usize, usize, Vec<u8>) {
+-    let (w, h) = (img.width, img.height);
++    thumbnail_rgba(img.width, img.height, img.rgba)
++}
++
++fn thumbnail_rgba(w: u32, h: u32, rgba: Vec<u8>) -> (usize, usize, Vec<u8>) {
+     let scale = (THUMB_MAX as f32 / w as f32)
+         .min(THUMB_MAX as f32 / h as f32)
+         .min(1.0);
+-    let src = match image::RgbaImage::from_raw(w, h, img.rgba) {
++    let src = match image::RgbaImage::from_raw(w, h, rgba) {
+         Some(s) => s,
+         None => return (0, 0, Vec::new()),
+     };
+@@ -557,6 +844,9 @@
+     pub snapshot: bool,
+     /// Receives next/previous commands from repeated compositor keybind launches.
+     pub cycle_socket: Option<std::os::unix::net::UnixDatagram>,
++    /// Use niri's IPC for window enumeration and snapshots instead of the
++    /// ext-image-copy-capture protocol that niri does not implement.
++    pub niri_backend: bool,
+ }
+ 
+ pub struct App {

modules/applications/window-overview/patches/window-overview.patch

@@ -0,0 +1,336 @@
+--- a/src/chooser_cli.rs
++++ b/src/chooser_cli.rs
+@@ -79,0 +80,4 @@
++        app_id_filter: None,
++        initial_cycle: None,
++        snapshot: false,
++        cycle_socket: None,
+--- a/src/lib.rs
++++ b/src/lib.rs
+@@ -33,3 +33,3 @@
+-/// Returns the held lock file (keep it alive), or `None` if another instance owns
+-/// it — sway processes its own keybinding even over our exclusive keyboard grab,
+-/// so re-pressing the bind would otherwise stack overlays.
++/// Returns the held lock and command socket for the first instance. Later
++/// invocations forward their requested cycle direction through the socket and
++/// return `None`, which also supports compositors that keep handling the binding.
+@@ -36 +36,3 @@
+-pub fn acquire_switch_lock() -> Option<std::fs::File> {
++pub fn acquire_switch_lock(
++    forward: bool,
++) -> Option<(std::fs::File, std::os::unix::net::UnixDatagram)> {
+@@ -38,0 +41 @@
++    let socket_path = dir.join("wlr-switcher.sock");
+@@ -45,2 +49,10 @@
+-    flock(&f, FlockOperation::NonBlockingLockExclusive).ok()?;
+-    Some(f)
++    if flock(&f, FlockOperation::NonBlockingLockExclusive).is_err() {
++        let socket = std::os::unix::net::UnixDatagram::unbound().ok()?;
++        let command = if forward { b"next" } else { b"prev" };
++        let _ = socket.send_to(command, socket_path);
++        return None;
++    }
++    let _ = std::fs::remove_file(&socket_path);
++    let socket = std::os::unix::net::UnixDatagram::bind(socket_path).ok()?;
++    socket.set_nonblocking(true).ok()?;
++    Some((f, socket))
+@@ -56 +68,2 @@
+-    std::thread::spawn(move || ui::capture_thread(tx));
++    let snapshot = opts.snapshot;
++    std::thread::spawn(move || ui::capture_thread(tx, snapshot));
+--- a/src/shell.rs
++++ b/src/shell.rs
+@@ -617,0 +618,3 @@
++        Keysym::plus | Keysym::KP_Add => Key::Plus,
++        Keysym::equal => Key::Equals,
++        Keysym::minus | Keysym::KP_Subtract => Key::Minus,
+--- a/src/switcher_cli.rs
++++ b/src/switcher_cli.rs
+@@ -75,0 +76,6 @@
++    /// Show only windows whose Wayland app-id exactly matches this value.
++    #[arg(long)]
++    app_id: Option<String>,
++    /// Select the previous window when the overview first opens.
++    #[arg(long)]
++    reverse: bool,
+@@ -96,2 +102,2 @@
+-    let _lock = match acquire_switch_lock() {
+-        Some(lock) => lock,
++    let (_lock, cycle_socket) = match acquire_switch_lock(!cli.reverse) {
++        Some(instance) => instance,
+@@ -121,0 +128,4 @@
++        app_id_filter: cli.app_id,
++        initial_cycle: Some(!cli.reverse),
++        snapshot: true,
++        cycle_socket: Some(cycle_socket),
+--- a/src/ui.rs
++++ b/src/ui.rs
+@@ -8,0 +9 @@
++use std::path::PathBuf;
+@@ -41,0 +43,32 @@
++const DEFAULT_OVERVIEW_SCALE: f32 = 0.85;
++const MIN_OVERVIEW_SCALE: f32 = 0.55;
++const MAX_OVERVIEW_SCALE: f32 = 1.0;
++
++fn overview_scale_path() -> Option<PathBuf> {
++    if let Some(path) = std::env::var_os("XDG_STATE_HOME") {
++        return Some(PathBuf::from(path).join("window-overview/scale"));
++    }
++    std::env::var_os("HOME")
++        .map(PathBuf::from)
++        .map(|path| path.join(".local/state/window-overview/scale"))
++}
++
++fn load_overview_scale() -> f32 {
++    overview_scale_path()
++        .and_then(|path| std::fs::read_to_string(path).ok())
++        .and_then(|value| value.trim().parse::<f32>().ok())
++        .unwrap_or(DEFAULT_OVERVIEW_SCALE)
++        .clamp(MIN_OVERVIEW_SCALE, MAX_OVERVIEW_SCALE)
++}
++
++fn save_overview_scale(scale: f32) {
++    let Some(path) = overview_scale_path() else {
++        return;
++    };
++    let Some(parent) = path.parent() else {
++        return;
++    };
++    if std::fs::create_dir_all(parent).is_ok() {
++        let _ = std::fs::write(path, format!("{scale:.2}\n"));
++    }
++}
+@@ -177 +210 @@
+-pub fn capture_thread(tx: Sender<Msg>) {
++pub fn capture_thread(tx: Sender<Msg>, snapshot: bool) {
+@@ -189,0 +223 @@
++    let mut captured: HashSet<String> = HashSet::new();
+@@ -236,0 +271 @@
++        captured.retain(|key| present.contains(key.as_str()));
+@@ -255 +290 @@
+-            if sessions.contains_key(&s.key) {
++            if sessions.contains_key(&s.key) || (snapshot && captured.contains(&s.key)) {
+@@ -295 +330,3 @@
+-            let Some(key) = by_id.get(&id) else { continue };
++            let Some(key) = by_id.get(&id).cloned() else {
++                continue;
++            };
+@@ -313,0 +351,6 @@
++            if snapshot {
++                captured.insert(key.clone());
++                sessions.remove(&key);
++                by_id.remove(&id);
++                client.close_session(&id);
++            }
+@@ -508,0 +552,8 @@
++    /// Exact Wayland app-id filter, used by taskbar launches.
++    pub app_id_filter: Option<String>,
++    /// Initial cycle direction. `None` leaves the first item selected.
++    pub initial_cycle: Option<bool>,
++    /// Capture each window once instead of continuously refreshing previews.
++    pub snapshot: bool,
++    /// Receives next/previous commands from repeated compositor keybind launches.
++    pub cycle_socket: Option<std::os::unix::net::UnixDatagram>,
+@@ -533,0 +585,5 @@
++    app_id_filter: Option<String>,
++    initial_forward: bool,
++    overview_scale: f32,
++    cycle_socket: Option<std::os::unix::net::UnixDatagram>,
++    queued_cycles: isize,
+@@ -567 +623 @@
+-            pending_initial_select: false,
++            pending_initial_select: opts.initial_cycle.is_some(),
+@@ -571,0 +628,5 @@
++            app_id_filter: opts.app_id_filter,
++            initial_forward: opts.initial_cycle.unwrap_or(true),
++            overview_scale: load_overview_scale(),
++            cycle_socket: opts.cycle_socket,
++            queued_cycles: 0,
+@@ -604 +665,4 @@
+-            return; // nothing to cycle yet; keep the pending initial jump
++            self.queued_cycles = self
++                .queued_cycles
++                .saturating_add(if forward { 1 } else { -1 });
++            return;
+@@ -639,0 +704,12 @@
++        loop {
++            let command = self.cycle_socket.as_ref().and_then(|socket| {
++                let mut buf = [0_u8; 8];
++                socket.recv(&mut buf).ok().map(|len| (buf, len))
++            });
++            match command {
++                Some((buf, len)) if &buf[..len] == b"next" => self.cycle(true),
++                Some((buf, len)) if &buf[..len] == b"prev" => self.cycle(false),
++                Some(_) => {}
++                None => break,
++            }
++        }
+@@ -698,0 +775,5 @@
++            .filter(|s| {
++                self.app_id_filter
++                    .as_ref()
++                    .is_none_or(|app_id| s.app_id.eq_ignore_ascii_case(app_id))
++            })
+@@ -713,2 +793,0 @@
+-        // Exposé covers the whole screen: dim almost to opaque so the real windows
+-        // behind are hidden (a client can't move them; this hides them instead).
+@@ -716 +795 @@
+-            c[3] = c[3].max(0.96);
++            c[3] = 0.5;
+@@ -734 +813,5 @@
+-                self.selected = if n > 1 { 1 } else { 0 };
++                self.selected = if n > 1 {
++                    if self.initial_forward { 1 } else { n - 1 }
++                } else {
++                    0
++                };
+@@ -737,0 +821,8 @@
++        if self.queued_cycles != 0 {
++            let n = self.visible().len();
++            if n > 0 {
++                self.selected = (self.selected as isize + self.queued_cycles)
++                    .rem_euclid(n as isize) as usize;
++                self.queued_cycles = 0;
++            }
++        }
+@@ -745 +836 @@
+-        let (esc, next, prev, enter) = ctx.input(|i| {
++        let (esc, next, prev, enter, zoom_in, zoom_out, wheel_zoom) = ctx.input(|i| {
+@@ -746,0 +838,8 @@
++            let wheel_zoom = i
++                .events
++                .iter()
++                .filter_map(|event| match event {
++                    egui::Event::MouseWheel { delta, .. } => Some(delta.y),
++                    _ => None,
++                })
++                .sum::<f32>();
+@@ -755,0 +855,3 @@
++                i.key_pressed(egui::Key::Plus) || i.key_pressed(egui::Key::Equals),
++                i.key_pressed(egui::Key::Minus),
++                wheel_zoom,
+@@ -771,0 +874,12 @@
++        if self.view == View::Grid && (zoom_in || zoom_out || wheel_zoom != 0.0) {
++            let delta = if zoom_in {
++                0.05
++            } else if zoom_out {
++                -0.05
++            } else {
++                wheel_zoom.signum() * 0.05
++            };
++            self.overview_scale =
++                (self.overview_scale + delta).clamp(MIN_OVERVIEW_SCALE, MAX_OVERVIEW_SCALE);
++            save_overview_scale(self.overview_scale);
++        }
+@@ -1020 +1134,5 @@
+-        let area = ctx.content_rect().shrink(24.0);
++        let full_area = ctx.content_rect().shrink(24.0);
++        let area = egui::Rect::from_center_size(
++            full_area.center(),
++            full_area.size() * self.overview_scale,
++        );
+@@ -1048,0 +1167 @@
++                    let selected = *i == self.selected;
+@@ -1062,9 +1181,3 @@
+-                        rect.size() * (0.86 + 0.14 * ease),
+-                    );
+-                    self.paint_expose_tile(
+-                        ui,
+-                        s,
+-                        scaled,
+-                        *i == self.selected,
+-                        resp.hovered(),
+-                        ease,
++                        rect.size()
++                            * (0.86 + 0.14 * ease)
++                            * if selected { 1.04 } else { 1.0 },
+@@ -1071,0 +1185 @@
++                    self.paint_expose_tile(ui, s, scaled, selected, resp.hovered(), ease);
+@@ -1077,0 +1192,8 @@
++        ui.painter().text(
++            egui::pos2(full_area.right(), full_area.top()),
++            egui::Align2::RIGHT_TOP,
++            format!("−  {:.0}%  +", self.overview_scale * 100.0),
++            egui::FontId::proportional(14.0),
++            self.theme.text_dim,
++        );
++
+@@ -1107 +1229,14 @@
+-        let white = egui::Color32::WHITE.gamma_multiply(a);
++        let accent = if s.is_window {
++            t.window_accent
++        } else {
++            t.screen_accent
++        };
++        let content_alpha = if selected || hovered { 1.0 } else { 0.55 };
++        let white = egui::Color32::WHITE.gamma_multiply(a * content_alpha);
++        if selected {
++            p.rect_filled(
++                rect.expand(8.0),
++                radius + 8.0,
++                fade(accent).gamma_multiply(0.35),
++            );
++        }
+@@ -1127,0 +1263,7 @@
++        if !selected && !hovered {
++            p.rect_filled(
++                rect,
++                radius,
++                egui::Color32::from_black_alpha(72).gamma_multiply(a),
++            );
++        }
+@@ -1136 +1278,5 @@
+-            egui::Color32::from_black_alpha(160).gamma_multiply(a),
++            if selected {
++                fade(accent).gamma_multiply(0.9)
++            } else {
++                egui::Color32::from_black_alpha(160).gamma_multiply(a)
++            },
+@@ -1175,9 +1321,22 @@
+-        let accent = if s.is_window {
+-            t.window_accent
+-        } else {
+-            t.screen_accent
+-        };
+-        let (sw, col) = if selected {
+-            (3.0, accent)
+-        } else if hovered {
+-            (2.0, accent)
++        if selected {
++            p.rect_stroke(
++                rect.expand(4.0),
++                radius + 4.0,
++                egui::Stroke::new(3.0, fade(egui::Color32::WHITE)),
++                egui::StrokeKind::Inside,
++            );
++            p.rect_stroke(
++                rect,
++                radius,
++                egui::Stroke::new(6.0, fade(accent)),
++                egui::StrokeKind::Inside,
++            );
++            let marker = egui::pos2(rect.right() - 18.0, rect.top() + 18.0);
++            p.circle_filled(marker, 13.0, fade(accent));
++            p.text(
++                marker,
++                egui::Align2::CENTER_CENTER,
++                "✓",
++                egui::FontId::proportional(18.0),
++                fade(egui::Color32::WHITE),
++            );
+@@ -1185,8 +1344,7 @@
+-            (1.0, t.thumb)
+-        };
+-        p.rect_stroke(
+-            rect,
+-            radius,
+-            egui::Stroke::new(sw, fade(col)),
+-            egui::StrokeKind::Inside,
+-        );
++            p.rect_stroke(
++                rect,
++                radius,
++                egui::Stroke::new(if hovered { 2.0 } else { 1.0 }, fade(accent)),
++                egui::StrokeKind::Inside,
++            );
++        }

modules/applications/xcode/darwin.nix

@@ -1,8 +0,0 @@
-{
-  homebrew = {
-    enable = true;
-    masApps = {
-      Xcode = 497799835;
-    };
-  };
-}

modules/applications/yt-dlp/home.nix

@@ -1,4 +0,0 @@
-{ pkgs, ... }:
-{
-  home.packages = [ pkgs.yt-dlp ];
-}

modules/applications/zed/home.nix

@@ -4,11 +4,8 @@
     extensions = [
       "catppuccin"
       "nix"
-      "dockerfile"
     ];
     mutableUserSettings = false;
-    mutableUserKeymaps = false;
-    userKeymaps = import ./keymaps.nix;
 
     userSettings = {
       agent = {
@@ -39,9 +36,6 @@
         light = "Catppuccin Latte";
         dark = "Catppuccin Mocha";
       };
-      edit_predictions = {
-        provider = "copilot";
-      };
     };
   };
 }

modules/applications/zed/keymaps.nix

@@ -1,38 +0,0 @@
-[
-  {
-    context = "Editor && vim_mode == normal";
-    bindings = {
-      # This selected native-equivalent subset preserves Zed's Vim defaults for
-      # K, gd, grr, gri, gra, gO, ]d, [d, zM, zR, [b, and ]b.
-      "g r t" = "editor::GoToTypeDefinition";
-      "space space" = "pane::AlternateFile";
-      "space r n" = "editor::Rename";
-      "space c a" = "editor::ToggleCodeActions";
-      "space c f" = "editor::Format";
-      "space d l" = "editor::Hover";
-      "space e" = "project_panel::Toggle";
-      "space t t" = "terminal_panel::Toggle";
-      "space b c" = "pane::CloseActiveItem";
-      "space f f" = "file_finder::Toggle";
-      "space f g" = "pane::DeploySearch";
-      "space f b" = "tab_switcher::ToggleAll";
-      "space f s" = "outline::Toggle";
-      "space f shift-s" = "project_symbols::Toggle";
-      "space x x" = "diagnostics::Deploy";
-    };
-  }
-  {
-    # Keep normal-mode editor navigation out of terminals and other panels.
-    context = "Editor && vim_mode == normal && !menu";
-    bindings = {
-      "ctrl-h" = "workspace::ActivatePaneLeft";
-      "ctrl-j" = "workspace::ActivatePaneDown";
-      "ctrl-k" = "workspace::ActivatePaneUp";
-      "ctrl-l" = "workspace::ActivatePaneRight";
-      "ctrl-left" = "workspace::ActivatePaneLeft";
-      "ctrl-down" = "workspace::ActivatePaneDown";
-      "ctrl-up" = "workspace::ActivatePaneUp";
-      "ctrl-right" = "workspace::ActivatePaneRight";
-    };
-  }
-]

modules/hardwares/nvidia/nixos.nix

@@ -5,7 +5,10 @@
     modesetting.enable = true;
     open = true;
 
-    powerManagement.enable = true;
+    powerManagement = {
+      enable = true;
+      kernelSuspendNotifier = true;
+    };
 
     moduleParams.nvidia.NVreg_TemporaryFilePath = "/var/tmp";
 

modules/profiles/README.md

@@ -30,6 +30,7 @@ required on every supported host.
 | `interface.linux-desktop`            | NixOS with Home Manager                       |
 | `interface.labwc`                    | NixOS with Home Manager                       |
 | `interface.niri`                     | NixOS with Home Manager                       |
+| `interface.wallpaperengine`          | NixOS with Home Manager                       |
 | `platform.nixos`                     | NixOS                                         |
 | `platform.desktop`                   | Physical NixOS desktop                        |
 | `platform.intel-nvidia-desktop`      | Intel/NVIDIA physical NixOS desktop           |
@@ -38,13 +39,9 @@ required on every supported host.
 | `platform.vm`                        | UEFI QEMU NixOS guest with NFS client support |
 | `workload.development`               | NixOS, macOS with Home Manager                |
 | `workload.game`                      | NixOS, macOS                                  |
-| `workload.machine-learning`          | NixOS with Home Manager                       |
-| `workload.nix-builder`               | NixOS central build and binary-cache VM       |
 | `workload.personal`                  | NixOS, macOS with Home Manager                |
 | `workload.remote-access`             | NixOS, macOS                                  |
-| `workload.camera`                    | NixOS                                         |
 | `workload.server`                    | NixOS, macOS with Home Manager                |
-| `networking.homelab-cache-client`    | NixOS, macOS with access to nix-builder       |
 | `networking.tailscale-client`        | NixOS, macOS                                  |
 | `networking.tailscale-subnet-router` | NixOS                                         |
 | `security.fingerprint`               | NixOS, macOS                                  |
@@ -62,22 +59,22 @@ selects labwc. A daily-use macOS development machine can combine
 `interface.macos`, `workload.development`, and `workload.personal`. Hardware
 support does not implicitly select an interface or workload.
 
-`workload.machine-learning` provides the Hugging Face Hub CLI for hosts used
+`interface.wallpaperengine` is an opt-in Linux desktop appearance profile. It
-to download and publish machine learning models and datasets.
+enables Wallpaper Engine and disables Noctalia's wallpaper surface, so hosts
-
+without this profile retain Noctalia's configured wallpaper.
-`workload.nix-builder` provides the central build policy, persistent fleet GC
-roots, deploy-rs tooling, SOPS integration, and Harmonia binary cache. Network
-reachability and remote shell access remain independent host selections.
-
-`networking.homelab-cache-client` adds the internal Harmonia substituter and
-its trusted public key. It requires the public key generated during
-`hosts/nix-builder/README.md` bootstrap.
 
 `workload.personal` provides Pear Desktop on both NixOS and macOS. Home Manager
 enables performance improvements, synced lyrics, tracker blocking, the album
 color theme, and custom output-device selection while preserving user-owned
 settings such as the selected device.
 
+`workload.personal` also provides Handy for offline speech-to-text. It starts
+hidden when the graphical session begins. On niri and labwc, `Ctrl+Space` is
+owned by the compositor and invokes Handy's `--toggle-transcription` command;
+Handy's own shortcut bindings are disabled on NixOS so it does not monitor
+keyboard events under Wayland. Handy uses the Homebrew cask and starts at login
+on macOS.
+
 `workload.personal` provides ActivityWatch for local activity tracking. On
 NixOS, its server and Wayland-compatible watcher run as Home Manager user
 services. On macOS, the Homebrew cask starts at login.

modules/profiles/interface/linux-desktop/home.nix

@@ -15,6 +15,5 @@
     publicShare = "$HOME/Public";
     templates = "$HOME/Templates";
     videos = "$HOME/Videos";
-    projects = "$HOME/Projects";
   };
 }

modules/profiles/interface/linux-desktop/meta.nix

@@ -19,7 +19,6 @@
     "applications.vlc"
     "hardwares.graphics"
     "services.gvfs"
-    "services.evremap"
     "services.polkit-gnome"
     "systems.audio"
     "systems.fonts"

modules/profiles/interface/wallpaperengine/home.nix

@@ -0,0 +1,3 @@
+{
+  programs.noctalia.settings.wallpaper.enabled = false;
+}

modules/profiles/interface/wallpaperengine/meta.nix

@@ -0,0 +1,7 @@
+{
+  description = "Wallpaper Engine backgrounds for Linux desktop sessions";
+
+  includes = [
+    "applications.linux-wallpaperengine"
+  ];
+}

modules/profiles/networking/homelab-cache-client/meta.nix

@@ -1,5 +0,0 @@
-{
-  description = "Use the homelab Harmonia binary cache";
-
-  includes = [ "systems.nix.homelab-cache" ];
-}

modules/profiles/platform/desktop/nixos.nix

@@ -3,7 +3,6 @@
   # every system sleep path; screen blanking while locked is handled by
   # services.swayidle in the graphical session.
   systemd.sleep.settings.Sleep = {
-    AllowSuspend = true;
     AllowHibernation = false;
     AllowHybridSleep = false;
     AllowSuspendThenHibernate = false;

modules/profiles/security/secrets/nixos.nix

@@ -1,6 +0,0 @@
-{
-  sops.secrets."users/moons/hashedPassword" = {
-    sopsFile = ../../../secrets/common/system.yaml;
-    neededForUsers = true;
-  };
-}

modules/profiles/workload/camera/meta.nix

@@ -1,5 +0,0 @@
-{
-  description = "Camera capture and virtual camera tools";
-
-  includes = [ "systems.boot.v4l2loopback" ];
-}

modules/profiles/workload/camera/nixos.nix

@@ -1,8 +0,0 @@
-{ pkgs, ... }:
-{
-  environment.systemPackages = with pkgs; [
-    gphoto2
-    ffmpeg
-    v4l-utils
-  ];
-}

modules/profiles/workload/development/home.nix

@@ -3,8 +3,11 @@
   home.packages = with pkgs; [
     bind
     bun
-    nil
+    mcp-nixos
-    python314
+    nix-fast-build
+    nix-tree
+    nixd
+    python312
     uv
   ];
 }

modules/profiles/workload/development/meta.nix

@@ -6,7 +6,6 @@
     "applications.claude"
     "applications.codex"
     "applications.codex-desktop"
-    "applications.codex-session-usage"
     "applications.docker"
     "applications.drawio"
     "applications.ghostty"
@@ -14,7 +13,6 @@
     "applications.java"
     "applications.opencode"
     "applications.vscode"
-    "applications.xcode"
     "applications.zed"
   ];
 }

modules/profiles/workload/machine-learning/meta.nix

@@ -1,5 +0,0 @@
-{
-  description = "Machine learning tools";
-
-  includes = [ "applications.huggingface-cli" ];
-}

modules/profiles/workload/nix-builder/meta.nix

@@ -1,10 +0,0 @@
-{
-  description = "Central Nix builder, deploy controller, and binary cache";
-
-  includes = [
-    "applications.nix-fleet"
-    "services.harmonia"
-    "systems.nix.build-server"
-    "systems.sops"
-  ];
-}

modules/profiles/workload/personal/meta.nix

@@ -6,8 +6,8 @@
     "applications.activitywatch"
     "applications.chrome"
     "applications.discord"
-    "applications.ffmpeg"
     "applications.gnome-text-editor"
+    "applications.handy"
     "applications.kde"
     "applications.moonlight"
     "applications.slack"
@@ -15,6 +15,5 @@
     "applications.obs"
     "applications.nani"
     "applications.thunderbird"
-    "applications.yt-dlp"
   ];
 }

modules/services/evremap/nixos.nix

@@ -1,20 +0,0 @@
-{
-  services.evremap = {
-    enable = true;
-
-    settings = {
-      device_name = "VXE VXE Mouse 1K Dongle Mouse";
-
-      remap = [
-        {
-          input = [ "BTN_SIDE" ];
-          output = [ "KEY_LEFTMETA" ];
-        }
-        {
-          input = [ "BTN_EXTRA" ];
-          output = [ "BTN_SIDE" ];
-        }
-      ];
-    };
-  };
-}

modules/services/harmonia/meta.nix

@@ -1,3 +0,0 @@
-{
-  description = "Harmonia binary cache backed by the local Nix store";
-}

modules/services/harmonia/nixos.nix

@@ -1,19 +0,0 @@
-let
-  signingKeyPath = "/run/secrets/harmonia/signing-key";
-in
-{
-  services.harmonia.cache = {
-    enable = true;
-    signKeyPaths = [ signingKeyPath ];
-
-    settings = {
-      bind = "0.0.0.0:5000";
-      priority = 30;
-    };
-  };
-
-  # Keep activation usable while the host-specific SOPS secret is bootstrapped.
-  # Once the secret exists, starting the socket also starts Harmonia on demand.
-  systemd.sockets.harmonia.unitConfig.ConditionPathExists = signingKeyPath;
-  systemd.services.harmonia.unitConfig.ConditionPathExists = signingKeyPath;
-}

modules/services/swayidle/home/nixos.nix

@@ -10,8 +10,6 @@ let
   brightnessState = "$XDG_RUNTIME_DIR/swayidle-brightness";
 
   onBattery = pkgs.writeShellScript "swayidle-on-battery" ''
-    [ "''${SWAYIDLE_ASSUME_AC:-0}" = 1 ] && exit 1
-
     for supply in /sys/class/power_supply/*; do
       [ -f "$supply/type" ] || continue
       [ "$(< "$supply/type")" = "Battery" ] || continue

modules/systems/audio/nixos.nix

@@ -21,5 +21,29 @@ in
     pulse.enable = true;
     jack.enable = true;
     wireplumber.enable = true;
+
+    extraConfig.pipewire."90-echo-cancel.conf" = {
+      "context.modules" = [
+        {
+          name = "libpipewire-module-echo-cancel";
+
+          args = {
+            "library.name" = "aec/libspa-aec-webrtc";
+
+            "monitor.mode" = true;
+
+            "capture.props" = {
+              "node.name" = "echo_cancel_capture";
+              "node.description" = "Echo Cancel Capture";
+            };
+
+            "source.props" = {
+              "node.name" = "echo_cancel_source";
+              "node.description" = "Echo Cancelled Microphone";
+            };
+          };
+        }
+      ];
+    };
   };
 }

modules/systems/boot/base/nixos.nix

@@ -1,6 +1,6 @@
 { pkgs, lib, ... }:
 {
   boot.loader.systemd-boot.configurationLimit = lib.mkDefault 8;
-  boot.kernelPackages = pkgs.linuxPackages;
+  boot.kernelPackages = pkgs.linuxPackages_latest;
   programs.nix-ld.enable = true;
 }

modules/systems/boot/v4l2loopback/nixos.nix

@@ -1,10 +0,0 @@
-{ config, ... }:
-{
-  boot = {
-    extraModulePackages = [ config.boot.kernelPackages.v4l2loopback ];
-    kernelModules = [ "v4l2loopback" ];
-    extraModprobeConfig = ''
-      options v4l2loopback devices=1 video_nr=42 card_label="LUMIX S9" exclusive_caps=1
-    '';
-  };
-}

modules/systems/nix/build-server/meta.nix

@@ -1,3 +0,0 @@
-{
-  description = "Central Nix build server policy and persistent fleet roots";
-}

modules/systems/nix/build-server/nixos.nix

@@ -1,33 +0,0 @@
-{ primaryUser, ... }:
-let
-  GiB = 1024 * 1024 * 1024;
-in
-{
-  nix = {
-    nrBuildUsers = 64;
-
-    settings = {
-      # Limit concurrent derivations so build scratch and memory usage remain
-      # bounded. Each derivation may still use every vCPU exposed to the VM.
-      max-jobs = 2;
-      cores = 0;
-
-      # Keep enough room for large desktop, browser, and CUDA closures.
-      min-free = 64 * GiB;
-      max-free = 128 * GiB;
-    };
-  };
-
-  systemd.services.nix-daemon.serviceConfig = {
-    MemoryAccounting = true;
-    MemoryMax = "90%";
-    OOMScoreAdjust = 500;
-  };
-
-  systemd.tmpfiles.rules = [
-    "d /var/lib/nix-fleet 0750 ${primaryUser} users - -"
-    "d /var/lib/nix-fleet/roots 0750 ${primaryUser} users - -"
-    "d /var/lib/nix-fleet/roots/build 0750 ${primaryUser} users - -"
-    "d /var/lib/nix-fleet/roots/deploy 0750 ${primaryUser} users - -"
-  ];
-}

modules/systems/nix/common.nix

@@ -7,18 +7,14 @@
       "flakes"
     ];
 
-    connect-timeout = 10;
-
     extra-substituters = [
       "https://cache.nixos.org"
       "https://nix-community.cachix.org"
       "https://moons-dotfiles.cachix.org"
       "https://noctalia.cachix.org"
       "https://vicinae.cachix.org"
-      "https://ghostty.cachix.org"
       "https://cache.numtide.com"
       "https://codex-desktop-linux.cachix.org"
-      "https://cuda-maintainers.cachix.org"
     ];
 
     extra-trusted-public-keys = [
@@ -27,10 +23,8 @@
       "moons-dotfiles.cachix.org-1:WHoroKiNScG2/dpxHHL1I0qVmvuQhJbEAP+DS2j9Rr0="
       "noctalia.cachix.org-1:pCOR47nnMEo5thcxNDtzWpOxNFQsBRglJzxWPp3dkU4="
       "vicinae.cachix.org-1:1kDrfienkGHPYbkpNj1mWTr7Fm1+zcenzgTizIcI3oc="
-      "ghostty.cachix.org-1:QB389yTa6gTyneehvqG58y0WnHjQOqgnA+wBnpWWxns="
       "niks3.numtide.com-1:DTx8wZduET09hRmMtKdQDxNNthLQETkc/yaX7M4qK0g="
       "codex-desktop-linux.cachix.org-1:nX/xy6AdK9hQE24A8ALGjkCKj2ObFmcnemiL5Cid4nk="
-      "cuda-maintainers.cachix.org-1:0dq3bujKpuEPMCX6U4WylrUDZ9JyUG0VpVZa7CNfq5E="
     ];
   };
 }

modules/systems/nix/homelab-cache/common.nix

@@ -1,22 +0,0 @@
-{ lib, ... }:
-let
-  publicKeyFile = ./public-key;
-  hasPublicKey = builtins.pathExists publicKeyFile;
-  publicKey = if hasPublicKey then lib.removeSuffix "\n" (builtins.readFile publicKeyFile) else "";
-in
-{
-  assertions = [
-    {
-      assertion = hasPublicKey;
-      message = ''
-        systems.nix.homelab-cache requires
-        modules/systems/nix/homelab-cache/public-key
-      '';
-    }
-  ];
-
-  nix.settings = lib.mkIf hasPublicKey {
-    extra-substituters = [ "http://nix-builder:5000" ];
-    extra-trusted-public-keys = [ publicKey ];
-  };
-}