Here are some of the projects I have going on:
A tool I made that use your device's camera for light metering a scene in JS only! This means no data is collected and sendt anywhere. I use this all the time and find it very useful for analog cameras
An RSVP-based speed reader. Input a PDF and read it word-by-word at your own pace up to 3× faster than normal reading. Tables, TOC entries, and page numbers are automatically filtered out. No data ever leaves your device, pdf is parsed in your browser.