add jellyfin my-service

modules/services/jellyfin/default.nix

@@ -0,0 +1,34 @@
+# The Free Software Media System
+{ config, lib, pkgs, ... }:
+let
+  cfg = config.my.services.jellyfin;
+  domain = config.networking.domain;
+  port = 8096;
+in
+{
+  options.my.services.jellyfin = with lib; {
+    enable = mkEnableOption "Jellyfin Media Server";
+  };
+
+  config = lib.mkIf cfg.enable {
+    services.jellyfin = {
+      enable = true;
+    };
+
+    my.services.nginx.virtualHosts = [
+      {
+        subdomain = "jellyfin";
+        inherit port;
+      }
+    ];
+
+    webapps.apps.jellyfin = {
+      dashboard = {
+        name = "Jellyfin";
+        category = "media";
+        icon = "film";
+        link = "https://jellyfin.${domain}";
+      };
+    };
+  };
+}