diff --git a/docs/develop.md b/docs/develop.md
new file mode 100644
index 0000000..95b8517
--- /dev/null
+++ b/docs/develop.md
@@ -0,0 +1,7 @@
+# Develop
+
+Start the PHP webserver like this, assuming you have curl-impersonate installed already
+
+```sh
+LD_PRELOAD=/usr/local/lib/libcurl-impersonate-ff.so CURL_IMPERSONATE=ff117 php -S localhost:8000
+```