Since you want to work on implementation and you know python (exploring the link you provided I found https://github.com/Huy-Ngo/acanban 👍 ), I would propose we work together on a quick hack to fix your particular frustration (commenting on issues). It turns out to be very similar to mine! https://fedeproxy.eu/blog/2021/03/31/dapsi-step0/#hacking-a-showcase

A simple first step would be for you to clone & run the tests from https://lab.fedeproxy.eu/fedeproxy/server

How does that sound?