nixos/alvr: init module

nixos/doc/manual/release-notes/rl-2405.section.md

@@ -65,6 +65,8 @@ The pre-existing [services.ankisyncd](#opt-services.ankisyncd.enable) has been m
 
 - [TuxClocker](https://github.com/Lurkki14/tuxclocker), a hardware control and monitoring program. Available as [programs.tuxclocker](#opt-programs.tuxclocker.enable).
 
+- [ALVR](https://github.com/alvr-org/alvr), a VR desktop streamer. Available as [programs.alvr](#opt-programs.alvr.enable)
+
 - [RustDesk](https://rustdesk.com), a full-featured open source remote control alternative for self-hosting and security with minimal configuration. Alternative to TeamViewer.
 
 ## Backward Incompatibilities {#sec-release-24.05-incompatibilities}

nixos/modules/module-list.nix

@@ -139,6 +139,7 @@
   ./programs/_1password-gui.nix
   ./programs/_1password.nix
   ./programs/adb.nix
+  ./programs/alvr.nix
   ./programs/appgate-sdp.nix
   ./programs/atop.nix
   ./programs/ausweisapp.nix

nixos/modules/programs/alvr.nix

@@ -0,0 +1,35 @@
+{ config, pkgs, lib, ... }:
+
+with lib;
+
+let
+  cfg = config.programs.alvr;
+in
+{
+  options = {
+    programs.alvr = {
+      enable = mkEnableOption (lib.mdDoc "ALVR, the VR desktop streamer");
+
+      package = mkPackageOption pkgs "alvr" { };
+
+      openFirewall = mkOption {
+        type = types.bool;
+        default = false;
+        description = lib.mdDoc ''
+          Whether to 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 ];
+    };
+  };
+
+  meta.maintainers = with maintainers; [ passivelemon ];
+}