diff --git a/src/bake/client/overlay.ts b/src/bake/client/overlay.ts
index 360d192b57..8ec108ed8b 100644
--- a/src/bake/client/overlay.ts
+++ b/src/bake/client/overlay.ts
@@ -125,6 +125,7 @@ interface CodePreview {
 
 interface RemappedFrame extends Frame {}
 
+declare const OVERLAY_CSS: string;
 /**
  * Initial mount is done lazily. The modal starts invisible, controlled
  * by `setModalVisible`.
@@ -144,7 +145,7 @@ function mountModal() {
   });
   const shadow = domShadowRoot.attachShadow({ mode: "open" });
   const sheet = new CSSStyleSheet();
-  sheet.replace(css("client/overlay.css", IS_BUN_DEVELOPMENT));
+  sheet.replace(OVERLAY_CSS);
   shadow.adoptedStyleSheets = [sheet];
 
   const root = elem("div", { class: "root" }, [
diff --git a/src/bake/macros.ts b/src/bake/macros.ts
deleted file mode 100644
index 4fa74f3e27..0000000000
--- a/src/bake/macros.ts
+++ /dev/null
@@ -1,13 +0,0 @@
-import { readFileSync } from "node:fs";
-import { resolve } from "node:path";
-
-// @ts-ignore
-export async function css(file: string, is_development: boolean): string {
-  const { success, stdout, stderr } = await Bun.spawnSync({
-    cmd: [process.execPath, "build", file, "--minify"],
-    cwd: import.meta.dir,
-    stdio: ["ignore", "pipe", "pipe"],
-  });
-  if (!success) throw new Error(stderr.toString("utf-8"));
-  return stdout.toString("utf-8");
-}
diff --git a/src/codegen/bake-codegen.ts b/src/codegen/bake-codegen.ts
index d0b6a1f948..08a9825133 100644
--- a/src/codegen/bake-codegen.ts
+++ b/src/codegen/bake-codegen.ts
@@ -30,6 +30,16 @@ function convertZigEnum(zig: string, names: string[]) {
   return output;
 }
 
+function css(file: string, is_development: boolean): string {
+  const { success, stdout, stderr } = Bun.spawnSync({
+    cmd: [process.execPath, "build", file, "--minify"],
+    cwd: import.meta.dir,
+    stdio: ["ignore", "pipe", "pipe"],
+  });
+  if (!success) throw new Error(stderr.toString("utf-8"));
+  return stdout.toString("utf-8");
+}
+
 async function run() {
   const devServerZig = readFileSync(join(base_dir, "DevServer.zig"), "utf-8");
   writeIfNotChanged(join(base_dir, "generated.ts"), convertZigEnum(devServerZig, ["IncomingMessageId", "MessageId"]));
@@ -43,6 +53,7 @@ async function run() {
           side: JSON.stringify(side),
           IS_ERROR_RUNTIME: String(file === "error"),
           IS_BUN_DEVELOPMENT: String(!!debug),
+          OVERLAY_CSS: css("../bake/client/overlay.css", !!debug),
         },
         minify: {
           syntax: !debug,