From 2022b773414a34de05677c776f4f4324f43a54e2 Mon Sep 17 00:00:00 2001
From: Matt Kane <mkane@cloudflare.com>
Date: Wed, 1 Apr 2026 13:45:04 +0100
Subject: [PATCH] fix(create-emdash): use async exec so spinner animates during
 install

---
 .changeset/fix-create-emdash-spinner.md |  5 +++++
 packages/create-emdash/src/index.ts     | 10 +++++-----
 2 files changed, 10 insertions(+), 5 deletions(-)
 create mode 100644 .changeset/fix-create-emdash-spinner.md

diff --git a/.changeset/fix-create-emdash-spinner.md b/.changeset/fix-create-emdash-spinner.md
new file mode 100644
index 0000000..80b6f79
--- /dev/null
+++ b/.changeset/fix-create-emdash-spinner.md
@@ -0,0 +1,5 @@
+---
+"create-emdash": patch
+---
+
+Fix spinner hanging during dependency installation by using async exec instead of execSync, which was blocking the event loop and preventing the spinner animation from updating.
diff --git a/packages/create-emdash/src/index.ts b/packages/create-emdash/src/index.ts
index 51e27dc..07c21ed 100644
--- a/packages/create-emdash/src/index.ts
+++ b/packages/create-emdash/src/index.ts
@@ -6,9 +6,12 @@
  * Usage: npm create emdash@latest
  */
 
-import { execSync } from "node:child_process";
+import { exec } from "node:child_process";
 import { existsSync, readFileSync, writeFileSync } from "node:fs";
 import { resolve } from "node:path";
+import { promisify } from "node:util";
+
+const execAsync = promisify(exec);
 
 import * as p from "@clack/prompts";
 import { downloadTemplate } from "giget";
@@ -251,10 +254,7 @@ async function main() {
 		if (shouldInstall) {
 			s.start(`Installing dependencies with ${pc.cyan(pm)}...`);
 			try {
-				execSync(installCmd, {
-					cwd: projectDir,
-					stdio: "ignore",
-				});
+				await execAsync(installCmd, { cwd: projectDir });
 				s.stop("Dependencies installed!");
 			} catch {
 				s.stop("Failed to install dependencies");