From 56f7fe5d9a78793d671e84ec10eee132ef273645 Mon Sep 17 00:00:00 2001
From: moons-14 <moons@moons14.com>
Date: Thu, 9 Apr 2026 02:00:18 +0900
Subject: [PATCH] action file

---
 .github/workflows/nix-cache.yml | 71 +++++++++++++++++++++++++++++++++
 .gitignore                      |  2 +-
 modules/core/cachix.nix         | 11 +++++
 modules/core/default.nix        |  5 +--
 4 files changed, 85 insertions(+), 4 deletions(-)
 create mode 100644 .github/workflows/nix-cache.yml
 create mode 100644 modules/core/cachix.nix

diff --git a/.github/workflows/nix-cache.yml b/.github/workflows/nix-cache.yml
new file mode 100644
index 0000000..9f8e195
--- /dev/null
+++ b/.github/workflows/nix-cache.yml
@@ -0,0 +1,71 @@
+name: nix-build-and-cache
+
+on:
+  pull_request:
+    paths:
+      - "flake.nix"
+      - "flake.lock"
+      - "hosts/**"
+      - "modules/**"
+      - "profiles/**"
+      - "overlays/**"
+      - ".github/workflows/nix-cache.yml"
+  push:
+    branches:
+      - main
+    paths:
+      - "flake.nix"
+      - "flake.lock"
+      - "hosts/**"
+      - "modules/**"
+      - "profiles/**"
+      - "overlays/**"
+      - ".github/workflows/nix-cache.yml"
+  workflow_dispatch:
+
+concurrency:
+  group: nix-${{ github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        host:
+          - x1g9
+          - x1g13-wsl
+          - x1g13
+          - monitor
+          - dev-1
+          - service-1
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v5
+
+      - name: Install Nix
+        uses: cachix/install-nix-action@v31
+        with:
+          github_access_token: ${{ secrets.GITHUB_TOKEN }}
+          extra_nix_config: |
+            accept-flake-config = true
+
+      - name: Setup Cachix for PR
+        if: github.event_name == 'pull_request'
+        uses: cachix/cachix-action@v17
+        with:
+          name: moons-dotfiles
+          skipPush: true
+
+      - name: Setup Cachix for main push
+        if: github.event_name == 'push' && github.ref == 'refs/heads/main'
+        uses: cachix/cachix-action@v17
+        with:
+          name: moons-dotfiles
+          authToken: "${{ secrets.CACHIX_AUTH_TOKEN }}"
+
+      - name: Build host
+        run: |
+          nix build -L .#nixosConfigurations.${{ matrix.host }}.config.system.build.toplevel
diff --git a/.gitignore b/.gitignore
index e692a32..a7f6ba0 100644
--- a/.gitignore
+++ b/.gitignore
@@ -16,4 +16,4 @@
 !/overlays/
 
 !renovate.json
-
+!.github/
diff --git a/modules/core/cachix.nix b/modules/core/cachix.nix
new file mode 100644
index 0000000..aa8ef45
--- /dev/null
+++ b/modules/core/cachix.nix
@@ -0,0 +1,11 @@
+{...}: {
+  nix.settings = {
+    extra-substituters = [
+      "https://moons-dotfiles.cachix.org"
+    ];
+
+    extra-trusted-public-keys = [
+      "moons-dotfiles.cachix.org-1:WHoroKiNScG2/dpxHHL1I0qVmvuQhJbEAP+DS2j9Rr0="
+    ];
+  };
+}
diff --git a/modules/core/default.nix b/modules/core/default.nix
index a30fd4a..196cbe6 100644
--- a/modules/core/default.nix
+++ b/modules/core/default.nix
@@ -1,8 +1,7 @@
-{ ... }:
-
-{
+{...}: {
   imports = [
     ./boot.nix
+    ./cachix.nix
     ./environment.nix
     ./fonts.nix
     ./gc.nix