format && add nix-serve for caching

hosts/sin/jellyfin.nix

@@ -1,6 +1,8 @@
-{pkgs, inputs, ...}: let
+{ pkgs, inputs, ... }:
+let
   unstable = import inputs.unstable { system = pkgs.system; };
-in {
+in
+{
   nixpkgs.config.packageOverrides = pkgs: {
     vaapiIntel = pkgs.vaapiIntel.override { enableHybridCodec = true; };
   };
@@ -27,24 +29,49 @@ in {
     extraGroups = [ "jellyfin" ];
   };
 
-  users.users.sonarr.extraGroups = ["jellyfin" "radarr" "transmission" "starr"];
-  users.users.radarr.extraGroups = ["jellyfin" "sonarr" "transmission" "starr"];
-  users.users.bazarr.extraGroups = ["jellyfin" "sonarr" "transmission" "starr" "radarr"];
-  users.users.lidarr.extraGroups = ["jellyfin" "starr" "transmission"];
-  
-  users.users.shobu.extraGroups = [ "jellyfin" "starr" "transmission" "radarr" "sonarr" ];
+  users.users.sonarr.extraGroups = [
+    "jellyfin"
+    "radarr"
+    "transmission"
+    "starr"
+  ];
+  users.users.radarr.extraGroups = [
+    "jellyfin"
+    "sonarr"
+    "transmission"
+    "starr"
+  ];
+  users.users.bazarr.extraGroups = [
+    "jellyfin"
+    "sonarr"
+    "transmission"
+    "starr"
+    "radarr"
+  ];
+  users.users.lidarr.extraGroups = [
+    "jellyfin"
+    "starr"
+    "transmission"
+  ];
+
+  users.users.shobu.extraGroups = [
+    "jellyfin"
+    "starr"
+    "transmission"
+    "radarr"
+    "sonarr"
+  ];
 
-  
   users.groups = {
-    starr = {};
+    starr = { };
   };
-  
+
   services = {
     jellyfin = {
       enable = true;
       openFirewall = true;
     };
- 
+
     sonarr = {
       enable = true;
       openFirewall = true;
@@ -68,7 +95,7 @@ in {
       openFirewall = true;
       package = unstable.lidarr;
     };
-    
+
     jellyseerr = {
       enable = true;
       openFirewall = true;