add opencode

home/common/default.nix

@@ -85,6 +85,7 @@
         xargs ${lib.getExe rbw} get "$@" | ${lib.getExe' wl-clipboard "wl-copy"}
     '')
     (google-fonts.override { fonts = [ "Tajawal" ]; })
+    pkgs-unstable.opencode
   ];
 
   programs = {
@@ -564,6 +565,36 @@
     "X-GNOME-Autostart-enabled=false"
   ];
 
+  xdg.configFile."opencode/opencode.jsonc".text = builtins.toJSON {
+    "$schema" = "https://opencode.ai/config.json";
+    model = "opencode/claude-sonnet-4-5";
+    small_model = "opencode/claude-haiku-4-5";
+    agent = {
+      plan.model = "opencode/claude-haiku-4-5";
+    };
+    mcp = {
+      memory = {
+        type = "local";
+        command = [
+          "npx"
+          "-y"
+          "@modelcontextprotocol/server-memory"
+        ];
+      };
+      browser = {
+        type = "local";
+        command = [
+          "npx"
+          "-y"
+          "@agent-infra/mcp-server-browser"
+          "--headless"
+          "--executable-path"
+          (lib.getExe pkgs-unstable.chromium)
+        ];
+      };
+    };
+  };
+
   gnome.automaticTimeZone = true;
   gtk.enable = true;