added config file for nixos

packages/sunshine/config.nix

@@ -0,0 +1,43 @@
+{
+  config,
+  lib,
+  pkgs,
+  ...
+}: let
+  cfg = config.programs.sunshine;
+in {
+  options.programs.sunshine = with lib; {
+    enable = mkEnableOption "sunshine";
+  };
+
+  config = lib.mkIf cfg.enable {
+    networking.firewall.allowedTCPPortRanges = [
+      {
+        from = 47984;
+        to = 48010;
+      }
+    ];
+    networking.firewall.allowedUDPPortRanges = [
+      {
+        from = 47998;
+        to = 48010;
+      }
+    ];
+    security.wrappers.sunshine = {
+      owner = "root";
+      group = "root";
+      capabilities = "cap_sys_admin+p";
+      source = "${pkgs.sunshine}/bin/sunshine";
+    };
+    systemd.user.services.sunshine = {
+      description = "Sunshine self-hosted game stream host for Moonlight";
+      startLimitBurst = 5;
+      startLimitIntervalSec = 500;
+      serviceConfig = {
+        ExecStart = "${config.security.wrapperDir}/sunshine";
+        Restart = "on-failure";
+        RestartSec = "5s";
+      };
+    };
+  };
+}