darktable

AGENTS.md

@@ -374,6 +374,7 @@ modules/profiles/
 │   ├── game/
 │   ├── machine-learning/
 │   ├── personal/
+│   ├── photography/
 │   ├── server/
 │   └── remote-access/
 └── security/
@@ -652,6 +653,7 @@ A host registry may use a specification like this:
       "workload.game"
       "workload.machine-learning"
       "workload.personal"
+      "workload.photography"
     ];
   };
 
@@ -685,6 +687,9 @@ x1g13 is the secure NixOS development and personal ThinkPad, with the same
 desktop sessions plus Tailscale client, SOPS, Secure Boot, and TPM-backed disk
 unlock. galleria is the Intel/NVIDIA physical desktop shared with Windows; it
 uses dedicated NixOS partitions, LUKS, Secure Boot, and TPM-backed disk unlock.
+It selects `workload.photography` for AI-enabled darktable. The application
+chooses CUDA support from the NVIDIA hardware unit's enable state and keeps
+the default CUDA targets, including RTX 3060 Ti support, to reuse binary caches.
 m2 is the daily-use macOS development and personal machine with the macOS
 interface defaults. Keep the desktop sessions independently selectable, and
 keep the development and personal profiles usable across NixOS and Darwin.

hosts/default.nix

@@ -117,6 +117,7 @@
       "workload.game"
       "workload.machine-learning"
       "workload.personal"
+      "workload.photography"
       "workload.camera"
     ];
   };

modules/applications/darktable/home/nixos.nix

@@ -0,0 +1,22 @@
+{
+  inputs,
+  osConfig,
+  pkgs,
+  ...
+}:
+let
+  unstable = import inputs.nixpkgs-unstable {
+    inherit (pkgs.stdenv.hostPlatform) system;
+    # Keep default CUDA targets so dependencies match the CUDA binary cache.
+    config = pkgs.config // {
+      cudaSupport = osConfig.my.hardwares.nvidia.enable;
+    };
+  };
+in
+{
+  home.packages = [
+    (unstable.darktable.override {
+      withAi = true;
+    })
+  ];
+}

modules/profiles/README.md

@@ -42,6 +42,7 @@ required on every supported host.
 | `workload.game`                      | NixOS, macOS                                  |
 | `workload.machine-learning`          | NixOS with Home Manager                       |
 | `workload.personal`                  | NixOS, macOS with Home Manager                |
+| `workload.photography`               | NixOS with Home Manager                       |
 | `workload.remote-access`             | NixOS, macOS                                  |
 | `workload.camera`                    | NixOS                                         |
 | `workload.server`                    | NixOS, macOS with Home Manager                |
@@ -70,6 +71,12 @@ Neovim, Yazi, and the remaining interactive command-line tools.
 `workload.machine-learning` provides the Hugging Face Hub CLI for hosts used
 to download and publish machine learning models and datasets.
 
+`workload.photography` provides darktable with AI support from the locked
+unstable package set. Its ONNX Runtime uses CUDA when the NVIDIA hardware unit
+is enabled, and CPU inference otherwise. Keep the default CUDA capabilities
+and forward compatibility to reuse the CUDA binary cache; these targets include
+galleria's RTX 3060 Ti. OpenCL drivers remain owned by hardware units.
+
 `workload.deploy-rs-target` enables OpenSSH and provisions the `nixdeploy`
 service account with the narrowly scoped passwordless commands required for
 deploy-rs activation and rollback confirmation.

modules/profiles/workload/photography/meta.nix

@@ -0,0 +1,5 @@
+{
+  description = "RAW photo development and editing";
+
+  includes = [ "applications.darktable" ];
+}

modules/systems/nix/common.nix

@@ -23,6 +23,7 @@
       "https://cache.numtide.com"
       "https://codex-desktop-linux.cachix.org"
       "https://cuda-maintainers.cachix.org"
+      "https://cache.nixos-cuda.org"
     ];
 
     extra-trusted-public-keys = [
@@ -35,6 +36,7 @@
       "niks3.numtide.com-1:DTx8wZduET09hRmMtKdQDxNNthLQETkc/yaX7M4qK0g="
       "codex-desktop-linux.cachix.org-1:nX/xy6AdK9hQE24A8ALGjkCKj2ObFmcnemiL5Cid4nk="
       "cuda-maintainers.cachix.org-1:0dq3bujKpuEPMCX6U4WylrUDZ9JyUG0VpVZa7CNfq5E="
+      "cache.nixos-cuda.org:74DUi4Ye579gUqzH4ziL9IyiJBlDpMRn9MBN8oNan9M="
       "nix-builder-1:aG/Y2Lac517isxGO+ZYdVgglj/SI54PkkWoZTQI9aOI="
     ];
   };