multiple conflicting verions of developer documentation
The page https://gitlab.com/internet-cleanup-foundation/server points to this developer documentation https://gitlab.com/internet-cleanup-foundation/server/-/blob/master/documentation/development.md which states to use vagrant and brew.
Read the docs has this page: https://failmap.readthedocs.io/en/latest/topics/development/getting_started.html which states to use tox.
https://gitlab.com/internet-cleanup-foundation/web-security-map has developer instructions stating to use make.
The last one seems to result in a more or less working environment.