Enable VR streaming with ALVR

hosts/adalbert/default.nix

@@ -29,10 +29,11 @@
 
     ../common/optional/systemd-boot.nix
     ../common/optional/wireshark.nix
-    ../common/optional/gamemode.nix
     ../common/optional/kde-connect.nix
     ../common/optional/gnome-keyring.nix
     ../common/optional/adb.nix
+    ../common/optional/gaming/gamemode.nix
+    ../common/optional/gaming/vr.nix
   ];
 
   nixpkgs = {

hosts/common/global/user.nix

@@ -8,7 +8,6 @@
 }: let
   ifTheyExist = groups: builtins.filter (group: builtins.hasAttr group config.users.groups) groups;
 in {
-  imports = builtins.attrValues outputs.nixosModules; #propagates imports downwards
   users.users.${vars.user} = {
     isNormalUser = true;
     shell = pkgs.fish;

hosts/common/optional/gaming/vr.nix

@@ -0,0 +1,6 @@
+{
+  programs.alvr = {
+    enable = true;
+    openFirewall = true;
+  };
+}

modules/nixos/alvr.nix

@@ -0,0 +1,34 @@
+{
+  config,
+  pkgs,
+  lib,
+  ...
+}:
+with lib; let
+  cfg = config.programs.alvr;
+in {
+  options = {
+    programs.alvr = {
+      enable = mkEnableOption (lib.mdDoc "ALVR");
+
+      package = mkPackageOption pkgs "alvr" {};
+
+      openFirewall = mkOption {
+        type = types.bool;
+        default = false;
+        description = lib.mdDoc ''
+          Open the default ports in the firewall for the ALVR server.
+        '';
+      };
+    };
+  };
+
+  config = mkIf cfg.enable {
+    environment.systemPackages = [cfg.package];
+
+    networking.firewall = mkIf cfg.openFirewall {
+      allowedTCPPorts = [9943 9944];
+      allowedUDPPorts = [9943 9944];
+    };
+  };
+}

modules/nixos/default.nix

@@ -2,5 +2,5 @@
 # These should be stuff you would like to share with others, not your personal configurations.
 {
   # List your module files here
-  # my-module = import ./my-module.nix;
+  alvr = import ./alvr.nix;
 }

pkgs/default.nix

@@ -1,6 +1,6 @@
 # Custom packages, that can be defined similarly to ones from nixpkgs
 # You can build them using 'nix build .#example'
-pkgs: {
+{pkgs, ...}: {
   # example = pkgs.callPackage ./example { };
   alvr = pkgs.callPackage ./alvr {};
 }