Help center dev server always runs on a port different than the web
app. We have relative URLs pointing to the web app in the help
center, but they are not on the port help center is running on. We
redirect instead to our web app proxy port.
This directory contains scripts that are used in building, managing,
testing, and other forms of work in a Zulip development environment.
Note that tools that are also useful in production belong in
scripts/ or should be Django management commands.