feat(open-webui): update configuration

hosts/home-pc.nix

@@ -19,6 +19,7 @@
     ../services/samba/home-pc.nix
     ../services/restic/home-pc.nix
     ../services/pcscd.nix
+    ../services/open-webui.nix
   ];
 
   nixpkgs.config.allowUnfree = true;

services/open-webui.nix

@@ -1,9 +1,36 @@
-{ pkgs, ... }:
+{
+  config,
+  inputs,
+  pkgs,
+  ...
+}:
 
 {
+  disabledModules = [
+    "services/misc/ollama.nix"
+    "services/misc/open-webui.nix"
+  ];
+
+  imports = [
+    "${inputs.nixpkgs-unstable}/nixos/modules/services/misc/ollama.nix"
+    "${inputs.nixpkgs-unstable}/nixos/modules/services/misc/open-webui.nix"
+  ];
+
+  services.ollama = {
+    enable = true;
+    package = pkgs.unstable.ollama;
+    acceleration = "rocm";
+    rocmOverrideGfx = "10.3.1";
+  };
+
   services.open-webui = {
     enable = true;
     package = pkgs.unstable.open-webui;
+    host = "0.0.0.0";
     port = 11111;
+    environment = {
+      WEBUI_AUTH = "False";
+      OLLAMA_API_BASE_URL = "http://127.0.0.1:${toString config.services.ollama.port}";
+    };
   };
 }