diff --git a/README.md b/README.md
index 50f788af..9cb7bbba 100644
--- a/README.md
+++ b/README.md
@@ -21,6 +21,14 @@ go build .
 
 ## Hacking
 
+### air
+
+This project uses [air](https://github.com/air-verse/air) for fast compile-and-test loops. You can run it with:
+
+```sh
+> BASE_URL=https://sync.nidus.cloud ARCGIS_CLIENT_ID=foo ARCGIS_CLIENT_SECRET=bar POSTGRES_DSN='postgresql://?host=/var/run/postgresql&dbname=nidus-sync' air
+```
+
 ### bob
 
 This uses the bob query framework. You can regenerate the models for bob with: