the IRS recently open sourced most of Direct File, a tax tool it has been working on for a few years now. unfortunately, due to recent events, the IRS isn't working on it anymore. I decided to pick up where they left off and I'm trying to get it ready for next tax season
the work behind Direct File is really interesting and I made a lot of it available online to read as well - https://docs.openfile.tax/en/latest/