diff --git a/DEVELOPMENT.md b/DEVELOPMENT.md
index 1989e049c4c3c37f7c9ae3f892294716633f36e5..5147222f6ae8c3e6c757fee6c486358c6c9d850f 100644
--- a/DEVELOPMENT.md
+++ b/DEVELOPMENT.md
@@ -2,7 +2,7 @@
 
 ## Setup
 
-* Install python3 and virtualenv
+* Install python3, virtualenv, redis and a database program (postgres, mysql, sqlite does not work with alembic migrations)
 * Create a virtualenv and install the requirements
 
 ```sh
@@ -22,7 +22,7 @@ cp config.py.example config.py
   - Don't forget to enter your database connection
   - And your authentication backend
   - And deactivate everything you do not use
-
+* create the path where PDFs will be stored (`DOCUMENTS_PATH` in config.py)
 * Fill your database
 
 ```sh
diff --git a/config.py.example b/config.py.example
index 67ce7d6abea017caccf2c9b86472f4ed11d63c5b..1aa605cbd8a2665a12850e18ec76aeb5ed66bea1 100644
--- a/config.py.example
+++ b/config.py.example
@@ -148,6 +148,7 @@ FONTS = {
 }
 
 # local filesystem path to save compiled and uploaded protocols (and attachments)
+# create this path!
 DOCUMENTS_PATH = "documents"
 
 # keywords indicating private protocol parts