server/slop: add brave shim user service and patch openclaw brave endpoint

hosts/server/slop/brave.nix

@@ -0,0 +1,26 @@
+{ pkgs, ... }:
+
+{
+  # Local Brave API shim as a user service
+  systemd.user.services.brave-shim = {
+    description = "Brave Search API shim (DDGS)";
+    wantedBy = [ "default.target" ];
+    after = [ "network-online.target" ];
+    wants = [ "network-online.target" ];
+
+    serviceConfig = {
+      Type = "simple";
+      WorkingDirectory = "/home/ocbwoy3/Projects/brave_shim";
+      ExecStart = ''
+        ${pkgs.uv}/bin/uv run \
+          --with fastapi \
+          --with uvicorn \
+          --with ddgs \
+          --with pyyaml \
+          python brave_shim.py
+      '';
+      Restart = "always";
+      RestartSec = "3";
+    };
+  };
+}

hosts/server/slop/openclaw.nix

@@ -4,6 +4,18 @@
   ...
 }:
 
+let
+  openclawPatched = inputs.openclaw.packages.${pkgs.system}.openclaw-gateway.overrideAttrs (old: {
+    postInstall = (old.postInstall or "") + ''
+      # Point Brave web-search endpoint to local shim
+      if [ -d "$out/lib/openclaw/dist" ]; then
+        grep -RIl "https://api.search.brave.com/" "$out/lib/openclaw/dist" | while read -r f; do
+          substituteInPlace "$f" --replace-fail "https://api.search.brave.com/" "http://127.0.0.1:8000/"
+        done
+      fi
+    '';
+  });
+in
 {
   home-manager.sharedModules = [
     inputs.openclaw.homeManagerModules.openclaw
@@ -11,8 +23,10 @@
 
   users.users.ocbwoy3 = {
     packages = [
-      inputs.openclaw.packages.${pkgs.system}.openclaw-gateway
+      openclawPatched
       (pkgs.callPackage ./gogcli.nix { })
+      pkgs.uv
+      pkgs.python3
     ];
   };
 }