./develop.sh up does not work out of the box on a "normal" Linux box (which already has an apache running on port 80), because listenbrainz_web_1 wants to bind to port 80.

The documentation makes no mention of how to change this, nor does config.py include a port setting for listenbrainz itself (it has a server root url, but adding :9000 there does not help).

Some digging showed this can be handled by editing docker/docker-compose.yml (changing "80:80" to "9000:80" in the web section) - but for someone not terribly familiar with docker this was not obvious.