WIP: feat(webserver): Reimplement music player

Flake lock file updates:

• Updated input 'disko':
    'github:nix-community/disko/af087d076d3860760b3323f6b583f4d828c1ac17' (2025-11-04)
  → 'github:nix-community/disko/2055a08fd0e2fd41318279a5355eb8a161accf26' (2025-11-28)
• Updated input 'nixpkgs':
    'https://releases.nixos.org/nixos/25.05/nixos-25.05.813095.1c8ba8d3f763/nixexprs.tar.xz?lastModified=1763948260&narHash=sha256-zZk7fn2ARAqmLwaYTpxBJmj81KIdz11NiWt7ydHHD/M%3D&rev=1c8ba8d3f7634acac4a2094eef7c32ad9106532c' (2025-11-24)
  → 'https://releases.nixos.org/nixos/25.05/nixos-25.05.813221.9a7b80b6f82a/nixexprs.tar.xz?lastModified=1764316264&narHash=sha256-UcoE0ISg9Nnzx/2n7VvQl3fRsLg%2BDcVa/ZGf/DZNHbs%3D&rev=9a7b80b6f82a71ea04270d7ba11b48855681c4b0' (2025-11-28)
• Updated input 'nixpkgs-unstable':
    'https://releases.nixos.org/nixos/unstable/nixos-25.11pre900642.050e09e09111/nixexprs.tar.xz?lastModified=1763835633&narHash=sha256-nzRnw0UkYQpDm0o20AKvG/5oHCXy5qEGOsFAVhB5NmA%3D&rev=050e09e091117c3d7328c7b2b7b577492c43c134' (2025-11-22)
  → 'https://releases.nixos.org/nixos/unstable/nixos-26.05pre903292.2fad6eac6077/nixexprs.tar.xz?lastModified=1764242076&narHash=sha256-6/1EG2fiKvLoUJ8FD7ymRx87e4zcfJTzAdUYgo4CDLA%3D&rev=2fad6eac6077f03fe109c4d4eb171cf96791faa4' (2025-11-27)
• Updated input 'sops-nix':
    'github:Mic92/sops-nix/877bb495a6f8faf0d89fc10bd142c4b7ed2bcc0b' (2025-11-20)
  → 'github:Mic92/sops-nix/c482a1c1bbe030be6688ed7dc84f7213f304f1ec' (2025-11-24)

flake.nix

@@ -2,7 +2,7 @@
   description = "tlater.net host configuration";
 
   inputs = {
-    nixpkgs.url = "https://channels.nixos.org/nixos-25.05/nixexprs.tar.xz";
+    nixpkgs.url = "https://channels.nixos.org/nixos-25.05-small/nixexprs.tar.xz";
     nixpkgs-unstable.url = "https://channels.nixos.org/nixos-unstable/nixexprs.tar.xz";
 
     ## Nix/OS utilities