nix s9 camera

AGENTS.md

@@ -367,7 +367,9 @@ modules/profiles/
 │   ├── desktop/
 │   └── vm/
 ├── workload/
+│   ├── camera/
 │   ├── development/
+│   ├── game/
 │   ├── personal/
 │   ├── server/
 │   └── remote-access/
@@ -602,6 +604,7 @@ A host registry may use a specification like this:
       "security.secrets"
       "security.secure-boot"
       "security.tpm-storage"
+      "workload.camera"
       "workload.development"
       "workload.personal"
     ];

hosts/default.nix

@@ -85,6 +85,7 @@
       "workload.development"
       "workload.game"
       "workload.personal"
+      "workload.camera"
     ];
   };
 

modules/profiles/README.md

@@ -40,6 +40,7 @@ required on every supported host.
 | `workload.game`                      | NixOS, macOS                                  |
 | `workload.personal`                  | NixOS, macOS with Home Manager                |
 | `workload.remote-access`             | NixOS, macOS                                  |
+| `workload.camera`                    | NixOS                                         |
 | `workload.server`                    | NixOS, macOS with Home Manager                |
 | `networking.tailscale-client`        | NixOS, macOS                                  |
 | `networking.tailscale-subnet-router` | NixOS                                         |

modules/profiles/workload/camera/meta.nix

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

modules/profiles/workload/camera/nixos.nix

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

modules/systems/boot/v4l2loopback/nixos.nix

@@ -0,0 +1,10 @@
+{ 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/common.nix

@@ -18,6 +18,7 @@
       "https://ghostty.cachix.org"
       "https://cache.numtide.com"
       "https://codex-desktop-linux.cachix.org"
+      "https://cuda-maintainers.cachix.org"
     ];
 
     extra-trusted-public-keys = [
@@ -29,6 +30,7 @@
       "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="
     ];
   };
 }