diff --git a/packages/llama-swap/default.nix b/packages/llama-swap/default.nix
index 4e6115f..e39fc83 100644
--- a/packages/llama-swap/default.nix
+++ b/packages/llama-swap/default.nix
@@ -5,6 +5,7 @@
 , versionCheckHook
 , callPackage
 , nixosTests
+, nix-update-script
 ,
 }:
 
@@ -13,13 +14,18 @@ let
 in
 buildGoModule (finalAttrs: {
   pname = "llama-swap";
-  version = "197";
+  version = "199";
+
+  outputs = [
+    "out"
+    "wol" # wake on lan proxy
+  ];
 
   src = fetchFromGitHub {
     owner = "mostlygeek";
     repo = "llama-swap";
     tag = "v${finalAttrs.version}";
-    hash = "sha256-EXgyYmpbN/zzr6KeSpvFEB+FS7gDIZFinNMv70v5boY=";
+    hash = "sha256-tAWXhfOWPLBuEgd+32CbuIkn1hN+4VI4xkyx7E2a81I=";
     # populate values that require us to use git. By doing this in postFetch we
     # can delete .git afterwards and maintain better reproducibility of the src.
     leaveDotGit = true;
@@ -35,7 +41,6 @@ buildGoModule (finalAttrs: {
   vendorHash = "sha256-XiDYlw/byu8CWvg4KSPC7m8PGCZXtp08Y1velx4BR8U=";
 
   passthru.ui = callPackage ./ui.nix { llama-swap = finalAttrs.finalPackage; };
-  passthru.npmDepsHash = "sha256-Fs7+JKE8YBp2Xj8bVBlwmT+UwuD642VeUHiPx+fv94c=";
 
   nativeBuildInputs = [
     versionCheckHook
@@ -73,8 +78,8 @@ buildGoModule (finalAttrs: {
 
   checkFlags =
     let
-      skippedTests = lib.optionals (stdenv.isDarwin && stdenv.isx86_64) [
-        # Fail only on x86_64-darwin intermittently
+      skippedTests = lib.optionals (stdenv.isDarwin) [
+        # Fail only on *-darwin intermittently
         # https://github.com/mostlygeek/llama-swap/issues/320
         "TestProcess_AutomaticallyStartsUpstream"
         "TestProcess_WaitOnMultipleStarts"
@@ -90,6 +95,7 @@ buildGoModule (finalAttrs: {
         "TestProcess_ForceStopWithKill"
         "TestProcess_StopCmd"
         "TestProcess_EnvironmentSetCorrectly"
+        "TestProcess_ReverseProxyPanicIsHandled"
       ];
     in
     [ "-skip=^${builtins.concatStringsSep "$|^" skippedTests}$" ];
@@ -105,14 +111,22 @@ buildGoModule (finalAttrs: {
     rm "$GOPATH/bin/simple-responder"
   '';
 
-  preInstall = ''
+  postInstall = ''
     install -Dm444 -t "$out/share/llama-swap" config.example.yaml
+    mkdir -p "$wol/bin"
+    mv "$out/bin/wol-proxy" "$wol/bin/"
   '';
 
   doInstallCheck = true;
   versionCheckProgramArg = "-version";
 
   passthru.tests.nixos = nixosTests.llama-swap;
+  passthru.updateScript = nix-update-script {
+    extraArgs = [
+      "--subpackage"
+      "ui"
+    ];
+  };
 
   meta = {
     homepage = "https://github.com/mostlygeek/llama-swap";
diff --git a/packages/llama-swap/ui.nix b/packages/llama-swap/ui.nix
index 788dd8b..0b26483 100644
--- a/packages/llama-swap/ui.nix
+++ b/packages/llama-swap/ui.nix
@@ -5,7 +5,8 @@
 
 buildNpmPackage (finalAttrs: {
   pname = "${llama-swap.pname}-ui";
-  inherit (llama-swap) version src npmDepsHash;
+  inherit (llama-swap) version src;
+  npmDepsHash = "sha256-gTDsuWPLCWsPltioziygFmSQFdLqjkZpmmVWIWoZwoc=";
 
   postPatch = ''
     substituteInPlace vite.config.ts \