- CodeRev.app (https://coderev.app): a free, open source tool to help teams that want to organize code reviews as part of the interview process.
- Turas.app (https://turas.app): A PWA and Chrome Extension[0] that helps well-organized travelers plan their trips using Google Maps
Both have been works of passion (the latter used personally to plan all of my own trips).
[0] https://chromewebstore.google.com/detail/turasapp/lpfijfdbgo...