Move Nix files back to the root of the project

modules/nixos/homelab/jellyfin.nix

@@ -0,0 +1,22 @@
+{ config, lib, ... }:
+
+with lib;
+
+{
+  options.nixosModules.jellyfin.enable = mkEnableOption "Enable jellyfin";
+
+  config = mkIf config.nixosModules.jellyfin.enable {
+    services.jellyfin = {
+      enable = true;
+      openFirewall = true;
+      group = "media";
+      configDir = "/mnt/media/jellyfin";
+    };
+
+    services.caddy.virtualHosts."jellyfin.oliverdavies.uk" = {
+      useACMEHost = "oliverdavies.uk";
+
+      extraConfig = "reverse_proxy localhost:8096";
+    };
+  };
+}