I spent way too much time building a Rust based CLI app to avoid digging through calendar entries and git commits to figure out which days I worked for each of my clients at the end of the month. It’s a simple tool that takes your git history across one or more repositories, estimates the worked number of hours and generates a timesheet on a unique link to share with clients for approval - no database or signup needed. It’s free and open-source. I built it for my own (likely) niche workflow as a freelance developer. If you try it out, I’d be curious to hear if it’s useful (or not).