Technically it's possible to see most of my code on github, but most of it definitely wasn't intended for sharing, mostly protection from losing it.

A number of SmartThings device handlers and arduino code for home automation (early Ambilight clone, light strips, sump pump monitoring, desk fans).

A janky pendant to run on RPi for my CNC (clockworkpi.com devices are cool btw!)

Reddit bookmarks manager that google somehow scanned so technically there are a few people using it... accidentally

Custom Mailspring build with themes and minor annoyance tweaks

Not counting various TamperMonkey scripts that fix some site annoyances