turned obs into a program module

flake.nix

@@ -2,16 +2,6 @@
   description = "A very basic flake";
 
   inputs = {
-    # lix = {
-    #   url =
-    #     "git+https://git@git.lix.systems/lix-project/lix?ref=refs/tags/2.90-beta.1";
-    #   flake = false;
-    # };
-    # lix-module = {
-    #   url = "git+https://git.lix.systems/lix-project/nixos-module";
-    #   inputs.lix.follows = "lix";
-    #   inputs.nixpkgs.follows = "nixpkgs";
-    # };
     nixpkgs.url = "github:nixos/nixpkgs?ref=nixos-23.11";
     nixpkgs-unstable.url = "github:nixos/nixpkgs?ref=nixos-unstable";
     home-manager.url = "github:nix-community/home-manager/release-23.11";
@@ -42,6 +32,26 @@
             ({ pkgs, ... }: {
               nixpkgs.overlays = [
                 (self: super: {
+                  gnome = super.gnome.overrideScope' (gFinal: gPrev: {
+                    nautilus = gPrev.nautilus.overrideAttrs (nsuper: {
+                      buildInputs = nsuper.buildInputs
+                        ++ (with pkgs.gst_all_1; [
+                          gst-plugins-good
+                          gst-plugins-bad
+                          gst-plugins-ugly
+                          gst-plugins-base
+                        ]);
+                    });
+                    mutter = gPrev.mutter.overrideAttrs (old: {
+                      src = super.pkgs.fetchgit {
+                        url = "https://gitlab.gnome.org/vanvugt/mutter.git";
+                        # GNOME 45: triple-buffering-v4-45
+                        rev = "0b896518b2028d9c4d6ea44806d093fd33793689";
+                        sha256 =
+                          "sha256-mzNy5GPlB2qkI2KEAErJQzO//uo8yO0kPQUwvGDwR4w=";
+                      };
+                    });
+                  });
                   planify = pkgsU.planify;
                   gdtoolkit = pkgsU.gdtoolkit;
                   gallery-dl = pkgsU.gallery-dl;

hosts/workstation/configuration.nix

@@ -10,7 +10,9 @@ in {
     ./hardware-configuration.nix
     ../../base.nix
     ../../gnome.nix
+    ./obs-studio.nix
   ];
+  programs.obs-studio = { enable = true; };
   my = {
     emacs.enable = true;
     apps = {

hosts/workstation/obs-studio.nix

@@ -0,0 +1,42 @@
+{ pkgs, lib, config, ... }:
+
+with lib;
+
+let cfg = config.programs.obs-studio;
+in {
+  options.programs.obs-studio = {
+    enable = mkEnableOption "OBS Studio program";
+
+    package = mkOption {
+      type = types.package;
+      default = pkgs.obs-studio;
+      defaultText = "pkgs.obs-studio";
+      description = "Set obs-studio package to use.";
+    };
+
+    enableVirtualCamera = mkOption {
+      type = types.bool;
+      default = false;
+      description = ''
+        Installs and sets up the v4l2loopback kernel module, necesary for OBS
+        to start a virtual camera.
+      '';
+    };
+  };
+
+  config = mkIf cfg.enable {
+    environment.systemPackages = [ cfg.package ];
+
+    boot = mkIf cfg.enableVirtualCamera {
+      extraModulePackages = with config.boot.kernelPackages; [ v4l2loopback ];
+
+      extraModprobeConfig = ''
+        options v4l2loopback devices=1 video_nr=1 card_label="OBS Cam" exclusive_caps=1
+      '';
+    };
+
+    security.polkit.enable = mkIf cfg.enableVirtualCamera true;
+  };
+
+  meta.maintainers = with lib.maintainers; [ CaptainJawZ ];
+}

modules/apps/multimedia.nix

@@ -2,7 +2,6 @@
   options.my.apps.multimedia.enable = lib.mkEnableOption "enable";
   config = lib.mkIf config.my.apps.multimedia.enable {
     users.users.jawz.packages = with pkgs; [
-      obs-studio # screen recorder & streamer
       pitivi # video editor
       celluloid # video player
       curtail # image compressor