That is cool. In the US, tax laws regarding crypto are a bit confusing, in my opinion. Building any tax tool would require extensive knowledge on the topic. Coding part shouldn't be that difficult though, since all of the data is easily available. My hesitation to commit to such project would be the possibility of misinterpreting what law requires and potentially creating false confidence in tax compliance for those who use the tool.
At this moment, I am busy with work projects, but it would be great to collaborate on future Hive projects. Thank You Jan.