everything just works lets leave it like that

flake.lock

@@ -23,11 +23,11 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1761999846,
+        "lastModified": 1762233356,
-        "narHash": "sha256-IYlYnp4O4dzEpL77BD/lj5NnJy2J8qbHkNSFiPBCbqo=",
+        "narHash": "sha256-cGS3lLTYusbEP/IJIWGgnkzIl+FA5xDvtiHyjalGr4k=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "3de8f8d73e35724bf9abef41f1bdbedda1e14a31",
+        "rev": "ca534a76c4afb2bdc07b681dbc11b453bab21af8",
         "type": "github"
       },
       "original": {
@@ -37,10 +37,27 @@
         "type": "github"
       }
     },
+    "nixpkgs-unstable": {
+      "locked": {
+        "lastModified": 1762361079,
+        "narHash": "sha256-lz718rr1BDpZBYk7+G8cE6wee3PiBUpn8aomG/vLLiY=",
+        "owner": "nixos",
+        "repo": "nixpkgs",
+        "rev": "ffcdcf99d65c61956d882df249a9be53e5902ea5",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nixos",
+        "ref": "nixpkgs-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
     "root": {
       "inputs": {
         "home-manager": "home-manager",
-        "nixpkgs": "nixpkgs"
+        "nixpkgs": "nixpkgs",
+        "nixpkgs-unstable": "nixpkgs-unstable"
       }
     }
   },

flake.nix

@@ -3,6 +3,7 @@
 
   inputs = {
     nixpkgs.url = "github:NixOS/nixpkgs/nixos-25.05";
+    nixpkgs-unstable.url = "github:nixos/nixpkgs/nixpkgs-unstable";
 
     home-manager = {
       url = "github:nix-community/home-manager/release-25.05";
@@ -11,54 +12,64 @@
 
   };
 
-  outputs = inputs@{ self, nixpkgs, home-manager, ... }: {
+  outputs = inputs@{ self, nixpkgs, home-manager, ... }:
-
+    let
-    nixosConfigurations = {
+      system = "x86_64-linux";
-      segfault-machine = nixpkgs.lib.nixosSystem {
+      lib = nixpkgs.lib;
-        system = "x86_64-linux";
+      pkgs-unstable = import inputs.nixpkgs-unstable {
-        specialArgs = { inherit inputs; };
+        system = system;
-        modules = [
+        config.allowUnfree = true;
-          ./hosts/segfault-machine/configuration.nix
-
-          home-manager.nixosModules.home-manager {
-            home-manager.backupFileExtension = "backup";
-            home-manager.useGlobalPkgs = true;
-            home-manager.useUserPackages = true;
-
-
-
-            home-manager.users.lukas.imports = [
-              ./home/lukas/laptop/default.nix
-            ];
-
-            home-manager.extraSpecialArgs = { inherit inputs; };
-
-          }
-        ];
       };
+    in
+    {
+      nixosConfigurations = {
+        segfault-machine = lib.nixosSystem {
+          inherit system; # inherited it from 'let' block
 
-      segfault-tower = nixpkgs.lib.nixosSystem {
+          specialArgs = { inherit pkgs-unstable; };
-        system = "x86_64-linux";
+
-        specialArgs = { inherit inputs; };
+          modules = [
-        modules = [
+            ./hosts/segfault-machine/configuration.nix
-          ./hosts/segfault-tower/configuration.nix
+
+            home-manager.nixosModules.home-manager {
+              home-manager.backupFileExtension = "backup";
+              home-manager.useGlobalPkgs = true;
+              home-manager.useUserPackages = true;
 
 
-          home-manager.nixosModules.home-manager {
-            home-manager.backupFileExtension = "backup";
-            home-manager.useGlobalPkgs = true;
-            home-manager.useUserPackages = true;
 
-            home-manager.users.lukas.imports = [
+              home-manager.users.lukas.imports = [
-              ./home/lukas/tower/default.nix
+                ./home/lukas/laptop/default.nix
-            ];
+              ];
+
+              home-manager.extraSpecialArgs = { inherit inputs; };
+
+            }
+          ];
+        };
+
+        segfault-tower = nixpkgs.lib.nixosSystem {
+          system = "x86_64-linux";
+          specialArgs = { inherit pkgs-unstable; };
+          modules = [
+            ./hosts/segfault-tower/configuration.nix
+
+
+            home-manager.nixosModules.home-manager {
+              home-manager.backupFileExtension = "backup";
+              home-manager.useGlobalPkgs = true;
+              home-manager.useUserPackages = true;
+
+              home-manager.users.lukas.imports = [
+                ./home/lukas/tower/default.nix
+              ];
+
+              home-manager.extraSpecialArgs = { inherit inputs; };
+            }
+          ];
+        };
 
-            home-manager.extraSpecialArgs = { inherit inputs; };
-          }
-        ];
       };
-
-    };
   };
 }
 

home/lukas/tower/packages.nix

@@ -1,7 +1,6 @@
 { pkgs, ... }:
 
 {
-
   fonts.fontconfig.enable = true;
 
   home.packages = [
@@ -12,7 +11,6 @@
     pkgs.element-desktop
     pkgs.tidal-hifi
 
-
     pkgs.tree
     pkgs.htop
     pkgs.neovim
@@ -42,7 +40,7 @@
     pkgs.binutils
     pkgs.gcc
 
-    pkgs.scenebuilder
+    # pkgs.scenebuilder
 
     pkgs.nil
 

modules/services/ollama.nix

@@ -1,6 +1,9 @@
+{config, pkgs-unstable, ... }:
+
 {
   services.ollama = {
     enable = true;
+    package = pkgs-unstable.ollama;
     acceleration = "cuda";
   };
 
@@ -9,6 +12,7 @@
   };
 
   services.open-webui = {
+    package = pkgs-unstable.open-webui;
     enable = true;
     port = 8081;
     environment = {
@@ -17,6 +21,10 @@
       SCARF_NO_ANALYTICS = "True";
       OLLAMA_API_BASE_URL = "http://127.0.0.1:11434/api";
       OLLAMA_BASE_URL = "http://127.0.0.1:11434";
+      WEBUI_AUTH = "False";
+      FRONTEND_BUILD_DIR = "${config.services.open-webui.stateDir}/build";
+      DATA_DIR = "${config.services.open-webui.stateDir}/data";
+      STATIC_DIR = "${config.services.open-webui.stateDir}/static";
     };
   };