rework layout

module/plugins.nix

@@ -7,9 +7,9 @@
 let
   cfg = config.services.jellyfin;
 
-  plugin = name: pks."jellyfin-plugin-${name}";
+  plugin = name: pkgs."jellyfin-plugin-${name}";
 
-  per-file = pkg: fn: lib.lists.foldl (acc: dll: acc ++ (fn dll)) pkg.pluginLibraries;
+  per-file = pkg: fn: lib.lists.foldl (acc: dll: acc ++ lib.toList (fn dll)) [] pkg.pluginLibraries;
 
   serviceConfig =
     pkg:
@@ -23,11 +23,11 @@ let
     in
     {
       BindReadOnlyPaths = per-file pkg (
-        name: "${pkg}/${name}:${cfg.dataDir}/plugins/${pkg.name}/${name}"
-      );
-      BindPaths = per-file pkg (
-        name: lib.optional (rw name) "${cfg.dataDir}/plugins/${pkg.name}/${name}"
+        name: "${pkg}/${name}.dll:${cfg.dataDir}/plugins/${pkg.name}/${name}.dll"
       );
+      BindPaths = [
+        "${cfg.dataDir}/plugins/${pkg.name}/meta.json"
+      ];
     };
 
   type.plugin = lib.types.addCheck lib.types.package (builtins.hasAttr "pluginLibraries");
@@ -35,27 +35,30 @@ in
 {
   options.services.jellyfin.plugins = lib.mkOption {
     type = lib.types.listOf (lib.types.coercedTo lib.types.nonEmptyStr plugin type.plugin);
-    default = { };
+    default = [];
   };
 
   config.systemd = lib.mkIf (cfg.plugins != { }) {
-    services.jellyfin.serviceConfig = lib.mkMerge (
-      [
-        { TemporaryFileSystem = [ "${cfg.dataDir}/plugins:ro" ]; }
-        { BindPaths = [ "${cfg.dataDir}/plugins/configurations/" ]; }
-      ]
-      ++ builtins.map serviceConfig cfg.plugins
-    );
+    services.jellyfin.serviceConfig = let
+      plugins = pkgs.linkFarm "jellyfin-plugins" (lib.lists.foldl (acc: plugin: acc ++ per-file (dll: { name = "${plugin.name}/${dll}.dll"; path = plugin + "/${dll}.dll"; })) [] cfg.plugins;
+    in {
+      BindReadOnlyPaths = [
+        "${plugins}:${cfg.dataDir}/plugins"
+      ];
+      BindPaths = [
+        "${cfg.dataDir}/plugins/configurations/"
+      ] ++ builtins.map (plugin: "${cfg.dataDir}/pluins/${pkg.name}/meta.json") cfg.plugins;
+    };
 
     tmpfiles.settings = lib.lists.foldl (
       acc: pkg:
       acc
       // {
-        ${pkg.name}."${cfg.dataDir}/plugins/${pkgs.name}/${name}".C = {
+        ${pkg.name}."${cfg.dataDir}/plugins/${pkg.name}/meta.json".C = {
           group = cfg.group;
           user = cfg.user;
           mode = "0700";
-          argument = "${pkg}/${name}";
+          argument = "${pkg}/meta.json";
         };
       }
     ) { } cfg.plugins;