diff --git a/flake.lock b/flake.lock
index ecc1bd8..a996985 100644
--- a/flake.lock
+++ b/flake.lock
@@ -5,11 +5,11 @@
         "nixpkgs": "nixpkgs"
       },
       "locked": {
-        "lastModified": 1722113426,
-        "narHash": "sha256-Yo/3loq572A8Su6aY5GP56knpuKYRvM2a1meP9oJZCw=",
+        "lastModified": 1728330715,
+        "narHash": "sha256-xRJ2nPOXb//u1jaBnDP56M7v5ldavjbtR6lfGqSvcKg=",
         "owner": "numtide",
         "repo": "devshell",
-        "rev": "67cce7359e4cd3c45296fb4aaf6a19e2a9c757ae",
+        "rev": "dd6b80932022cea34a019e2bb32f6fa9e494dfef",
         "type": "github"
       },
       "original": {
@@ -23,11 +23,11 @@
         "nixpkgs-lib": "nixpkgs-lib"
       },
       "locked": {
-        "lastModified": 1725234343,
-        "narHash": "sha256-+ebgonl3NbiKD2UD0x4BszCZQ6sTfL4xioaM49o5B3Y=",
+        "lastModified": 1730504689,
+        "narHash": "sha256-hgmguH29K2fvs9szpq2r3pz2/8cJd2LPS+b4tfNFCwE=",
         "owner": "hercules-ci",
         "repo": "flake-parts",
-        "rev": "567b938d64d4b4112ee253b9274472dc3a346eb6",
+        "rev": "506278e768c2a08bec68eb62932193e341f55c90",
         "type": "github"
       },
       "original": {
@@ -41,11 +41,11 @@
         "systems": "systems"
       },
       "locked": {
-        "lastModified": 1710146030,
-        "narHash": "sha256-SZ5L6eA7HJ/nmkzGG7/ISclqe6oZdOZTNoesiInkXPQ=",
+        "lastModified": 1726560853,
+        "narHash": "sha256-X6rJYSESBVr3hBoH0WbKE5KvhPU5bloyZ2L4K60/fPQ=",
         "owner": "numtide",
         "repo": "flake-utils",
-        "rev": "b1d9ab70662946ef0850d488da1c9019f3a9752a",
+        "rev": "c1dfcf08411b08f6b8615f7d8971a2bfa81d5e8a",
         "type": "github"
       },
       "original": {
@@ -64,16 +64,16 @@
         ]
       },
       "locked": {
-        "lastModified": 1728330908,
-        "narHash": "sha256-2N7yfI0N4Up+aYzq7++BqMXZhuPcQGskSuq0TUcK5V0=",
+        "lastModified": 1732585640,
+        "narHash": "sha256-sZxUPkGSTpcGgaRoB6X0xqodZMcqayCtOSceZxc0FjU=",
         "owner": "ggerganov",
         "repo": "llama.cpp",
-        "rev": "6374743747b14db4eb73ce82ae449a2978bc3b47",
+        "rev": "0eb4e12beebabae46d37b78742f4c5d4dbe52dc1",
         "type": "github"
       },
       "original": {
         "owner": "ggerganov",
-        "ref": "b3896",
+        "ref": "b4174",
         "repo": "llama.cpp",
         "type": "github"
       }
@@ -96,23 +96,23 @@
     },
     "nixpkgs-lib": {
       "locked": {
-        "lastModified": 1725233747,
-        "narHash": "sha256-Ss8QWLXdr2JCBPcYChJhz4xJm+h/xjl4G0c0XlP6a74=",
+        "lastModified": 1730504152,
+        "narHash": "sha256-lXvH/vOfb4aGYyvFmZK/HlsNsr/0CVWlwYvo2rxJk3s=",
         "type": "tarball",
-        "url": "https://github.com/NixOS/nixpkgs/archive/356624c12086a18f2ea2825fed34523d60ccc4e3.tar.gz"
+        "url": "https://github.com/NixOS/nixpkgs/archive/cc2f28000298e1269cea6612cd06ec9979dd5d7f.tar.gz"
       },
       "original": {
         "type": "tarball",
-        "url": "https://github.com/NixOS/nixpkgs/archive/356624c12086a18f2ea2825fed34523d60ccc4e3.tar.gz"
+        "url": "https://github.com/NixOS/nixpkgs/archive/cc2f28000298e1269cea6612cd06ec9979dd5d7f.tar.gz"
       }
     },
     "nixpkgs_2": {
       "locked": {
-        "lastModified": 1724208548,
-        "narHash": "sha256-8Aiur5lv2L8o9ErxHqS2F293MHiHCoRG8C4vCwhkeXo=",
+        "lastModified": 1730958623,
+        "narHash": "sha256-JwQZIGSYnRNOgDDoIgqKITrPVil+RMWHsZH1eE1VGN0=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "4c30668e1edb7348169407f218fa7c71a94b17f3",
+        "rev": "85f7e662eda4fa3a995556527c87b2524b691933",
         "type": "github"
       },
       "original": {
@@ -124,11 +124,11 @@
     },
     "nixpkgs_3": {
       "locked": {
-        "lastModified": 1718428119,
-        "narHash": "sha256-WdWDpNaq6u1IPtxtYHHWpl5BmabtpmLnMAx0RdJ/vo8=",
+        "lastModified": 1728538411,
+        "narHash": "sha256-f0SBJz1eZ2yOuKUr5CA9BHULGXVSn6miBuUWdTyhUhU=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "e6cea36f83499eb4e9cd184c8a8e823296b50ad5",
+        "rev": "b69de56fac8c2b6f8fd27f2eca01dcda8e0a4221",
         "type": "github"
       },
       "original": {
@@ -170,11 +170,11 @@
         "nixpkgs": "nixpkgs_3"
       },
       "locked": {
-        "lastModified": 1724206841,
-        "narHash": "sha256-L8dKaX4T3k+TR2fEHCfGbH4UXdspovz/pj87iai9qmc=",
+        "lastModified": 1731119076,
+        "narHash": "sha256-2eVhmocCZHJlFAz6Mt3EwPdFFVAtGgIySJc1EHQVxcc=",
         "owner": "oxalica",
         "repo": "rust-overlay",
-        "rev": "45e98fbd62c32e5927e952d2833fa1ba4fb35a61",
+        "rev": "23c4b3ba5f806fcf25d5a3b6b54fa0d07854c032",
         "type": "github"
       },
       "original": {
diff --git a/flake.nix b/flake.nix
index e003080..7dfcfa7 100644
--- a/flake.nix
+++ b/flake.nix
@@ -2,12 +2,12 @@
   description = "A Nix-flake-based Rust development environment";
   nixConfig = {
     extra-substituters = [
-      "https://nixcache.vlt81.de"
+      # "https://nixcache.vlt81.de"
       "https://llama-cpp.cachix.org"
       "https://cuda-maintainers.cachix.org"
     ];
     extra-trusted-public-keys = [
-      "nixcache.vlt81.de:nw0FfUpePtL6P3IMNT9X6oln0Wg9REZINtkkI9SisqQ="
+      # "nixcache.vlt81.de:nw0FfUpePtL6P3IMNT9X6oln0Wg9REZINtkkI9SisqQ="
       "llama-cpp.cachix.org-1:H75X+w83wUKTIPSO1KWy9ADUrzThyGs8P5tmAbkWhQc="
       "cuda-maintainers.cachix.org-1:0dq3bujKpuEPMCX6U4WylrUDZ9JyUG0VpVZa7CNfq5E="
     ];
@@ -23,7 +23,7 @@
       flake = false;
     };
     llama-cpp = {
-      url = "github:ggerganov/llama.cpp/b3896";
+      url = "github:ggerganov/llama.cpp/b4174";
       inputs.nixpkgs.follows = "nixpkgs";
       inputs.flake-parts.follows = "flake-parts";
     };
@@ -49,6 +49,9 @@
           (final: prev: {
             customRustToolchain = prev.rust-bin.fromRustupToolchainFile ./rust-toolchain.toml;
           })
+          (final: prev: {
+            nodejs-16_x = prev.nodePackages.nodejs; # needed for npmlock2nix
+          })
           (final: prev: {
             npmlock2nix = import npmlock2nix { pkgs = prev; };
           })
@@ -73,7 +76,7 @@
         };
         customNodeModules = pkgs.npmlock2nix.v2.node_modules {
           src = ./.;
-          nodejs = pkgs.nodejs_20;
+          nodejs = pkgs.nodejs_22;
         };
         buildInputs = with pkgs; [
           harfbuzz
@@ -121,7 +124,8 @@
                 (lib.cmakeBool "GGML_NATIVE" true)
                 (lib.cmakeBool "GGML_BLAS" false)
                 (lib.cmakeBool "GGML_CUDA" false)
-                (lib.cmakeBool "GGML_HIPBLAS" true)
+                (lib.cmakeBool "GGML_HIP" true)     # new one ? kinda undocumented ?
+                (lib.cmakeBool "GGML_HIPBLAS" true) # seems to be depr
                 (lib.cmakeBool "GGML_METAL" false)
                 (lib.cmakeBool "GGML_VULKAN" false)
                 (lib.cmakeBool "GGML_STATIC" false)
@@ -131,6 +135,7 @@
                 (lib.cmakeBool "GGML_AVX512" false)
                 (lib.cmakeFeature "CMAKE_HIP_COMPILER" "${rocmPackages.llvm.clang}/bin/clang")
                 (lib.cmakeFeature "CMAKE_HIP_ARCHITECTURES" (builtins.concatStringsSep ";" rocmTargets))
+                (lib.cmakeFeature "AMDGPU_TARGETS" (builtins.concatStringsSep ";" rocmTargets))
               ];
             });
         };
@@ -162,13 +167,13 @@
               cargo-outdated
               cargo-release
               calc
-              jre8 # needed for xmlls
+              # jre8 # needed for xmlls
               dart-sass
               fish
               inotify-tools
               leptosfmt
               mold
-              nodejs_20
+              # nodejs_20
               pkg-config
               rustywind
               sccache
@@ -179,16 +184,15 @@
 
           buildInputs = buildInputs;
           shellHook = ''
-                   # setup node-modules
-                   export NPM_LOCAL_PREFIX=${customNodeModules}/node_modules
-                   (ln -s $NPM_LOCAL_PREFIX ./node_modules 2>/dev/null || unlink ./node_modules) && ln -s $NPM_LOCAL_PREFIX ./node_modules 2>/dev/null
+            # setup node-modules
+            export NPM_LOCAL_PREFIX=${customNodeModules}/node_modules
+            (ln -s $NPM_LOCAL_PREFIX ./node_modules 2>/dev/null || unlink ./node_modules) && ln -s $NPM_LOCAL_PREFIX ./node_modules 2>/dev/null
 
-                   # export NIX_LD_LIBRARY_PATH=${pkgs.lib.makeLibraryPath buildInputs}:$NIX_LD_LIBRARY_PATH
+            # export NIX_LD_LIBRARY_PATH=${pkgs.lib.makeLibraryPath buildInputs}:$NIX_LD_LIBRARY_PATH
             export LD_LIBRARY_PATH="${pkgs.lib.makeLibraryPath buildInputs}"
-                   export LEPTOS_SASS_VERSION=1.71.0
-                   export LEPTOS_TAILWIND_VERSION=3.4.1
-                   export MALLOC_CONF=thp:always,metadata_thp:always
-
+            export LEPTOS_SASS_VERSION=1.71.0
+            export LEPTOS_TAILWIND_VERSION=3.4.1
+            export MALLOC_CONF=thp:always,metadata_thp:always
           '';
         };
       });