feat(packs): opt-in package packs — media/office/dev/gaming/containers/compat

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

modules/packs/media.nix

@@ -0,0 +1,84 @@
+# Media pack — players, image/video editing, screen capture.
+#
+# Migrated from packages.nix `multimedia` category. Runs the list through
+# omni.lib.filterPackages so the omni.packages.exclude mechanism still
+# applies — this is a desktop-bundle pack (omni-coupled by design), not
+# one of the standalone-importable packs.
+{ config, lib, pkgs, ... }:
+let
+  cfg = config.omni.packs.media;
+in
+{
+  options.omni.packs.media.enable =
+    lib.mkEnableOption "Media pack (players, image/video editing, screen capture)";
+
+  config = lib.mkIf cfg.enable {
+    environment.systemPackages = config.omni.lib.filterPackages (
+      with pkgs;
+      [
+        # Audio
+        pipewire
+        pulseaudio
+        pavucontrol
+        easyeffects
+        spotify
+        spotifyd
+        cmus
+        mpd
+        ncmpcpp
+
+        # Video
+        mpv
+        vlc
+        obs-studio
+        kdePackages.kdenlive
+        handbrake
+        ffmpeg-full
+
+        # Images
+        imv
+        feh
+        gimp
+        inkscape
+        krita
+        imagemagick
+        graphicsmagick
+        drawio
+
+        # Image morphing (python + opencv + dlib for landmark-based morphing).
+        # Exposed as `morph-py` so it doesn't collide with the bare `python3`
+        # pulled in by the development category.
+        (writeShellScriptBin "morph-py" ''
+          exec ${
+            python3.withPackages (
+              ps: with ps; [
+                opencv4
+                dlib
+                face-recognition-models
+                numpy
+                scipy
+              ]
+            )
+          }/bin/python3 "$@"
+        '')
+
+        # 3D / CAD — bare `openscad` is pinned to 2021.01 which no
+        # longer builds against current toolchains in nixpkgs-unstable.
+        openscad-unstable
+
+        # Screen capture
+        grim
+        slurp
+        wf-recorder
+        flameshot
+        peek
+
+        # PDF
+        zathura
+        evince
+        kdePackages.okular
+        mupdf
+      ]
+    );
+  };
+}