docker-zulip/custom_zulip_files

The custom_zulip_files mechanism allows you to test edits to Zulip before making changes in the upstream repo. It works by copying the contents of this directory on top of the main zulip/zulip checkout as part of the Docker build process.

As an example, if you want to test a change to scripts/setup/generate-self-signed-cert, you would grab a copy of the script from zulip/zulip, place it at custom_zulip_files/scripts/setup/generate-self-signed-cert, make your local edits, and then run docker-compose build.