From 3764a34e0563ae9e2a4b19569576d01100e1dfe0 Mon Sep 17 00:00:00 2001
From: Toph Tucker <tophtucker@gmail.com>
Date: Fri, 25 Aug 2023 13:07:25 -0400
Subject: [PATCH] mention rollup

---
 CONTRIBUTING.md | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index d77e8f1..a4463cc 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -14,6 +14,12 @@ Run tests with Mocha:
 yarn test
 ```
 
+Build with Rollup:
+
+```
+yarn prepublishOnly
+```
+
 ## For internal use
 
 See our checklist for [publishing a new release](https://observablehq.com/@observablehq/publishing-new-open-source-releases).
\ No newline at end of file