From 5d5290ceda6520597830286ad6d36d2adeaa627a Mon Sep 17 00:00:00 2001
From: Braden Wong <13159333+braden-w@users.noreply.github.com>
Date: Tue, 7 Apr 2026 22:11:19 +0800
Subject: [PATCH] fix(cli): add Node-compatible bin wrapper for npm publish

npm strips .ts files from bin entries. Added a .mjs wrapper that:
- Runs directly when invoked by Bun (imports src/bin.ts)
- Re-execs itself with Bun when invoked by Node
- Prints install instructions if Bun is not available

Pattern follows trekker, t1code, and other Bun-first CLIs.
---
 packages/cli/bin/epicenter.mjs | 30 ++++++++++++++++++++++++++++++
 packages/cli/package.json      |  2 +-
 2 files changed, 31 insertions(+), 1 deletion(-)
 create mode 100644 packages/cli/bin/epicenter.mjs

diff --git a/packages/cli/bin/epicenter.mjs b/packages/cli/bin/epicenter.mjs
new file mode 100644
index 0000000000..a83ab40fc3
--- /dev/null
+++ b/packages/cli/bin/epicenter.mjs
@@ -0,0 +1,30 @@
+#!/usr/bin/env node
+
+import { spawnSync } from "node:child_process";
+import { fileURLToPath } from "node:url";
+
+const isBun = typeof Bun !== "undefined";
+
+if (!isBun) {
+	const bunCheck = spawnSync("bun", ["--version"], { stdio: "ignore" });
+
+	if (bunCheck.status === 0) {
+		const result = spawnSync(
+			"bun",
+			[fileURLToPath(import.meta.url), ...process.argv.slice(2)],
+			{ stdio: "inherit" },
+		);
+		process.exit(result.status ?? 1);
+	}
+
+	console.error(`Epicenter CLI requires Bun.
+
+Install it:
+
+  curl -fsSL https://bun.sh/install | bash
+
+Then run this command again. Learn more: https://bun.sh`);
+	process.exit(1);
+}
+
+await import("../src/bin.ts");
diff --git a/packages/cli/package.json b/packages/cli/package.json
index d74aecdd18..573649cbb3 100644
--- a/packages/cli/package.json
+++ b/packages/cli/package.json
@@ -21,7 +21,7 @@
 	"main": "./src/index.ts",
 	"types": "./src/index.ts",
 	"bin": {
-		"epicenter": "./src/bin.ts"
+		"epicenter": "./bin/epicenter.mjs"
 	},
 	"dependencies": {
 		"@epicenter/workspace": "workspace:*",