diff --git a/serverless/cloudflare/README.md b/serverless/cloudflare/README.md
new file mode 100644
index 0000000..fa852fe
--- /dev/null
+++ b/serverless/cloudflare/README.md
@@ -0,0 +1,26 @@
+# PMTiles on Cloudflare Workers
+
+Use [rclone](https://rclone.org/downloads/) to upload your PMTiles archives to an R2 bucket. The Web UI is limited to 300 MB.
+
+# Getting started
+
+* Generate `worker.js` with all dependencies bundled:
+
+```sh
+git clone https://github.com/protomaps/PMTiles
+cd serverless/cloudflare
+npm run build
+```
+
+Copy `dist/worker.js` into the Cloudflare Workers editor. 
+
+* In Settings > Variables, bind your bucket to the environment variable `BUCKET`.
+
+By default, your worker will serve tiles at path `NAME/0/0/0.pbf` using the archive at the root of your bucket `NAME.pmtiles`.
+
+This behavior can be customized with two optional environment variables:
+
+`PMTILES_PATH`
+`TILE_PATH`
+
+(TODO)