40 lines of C to control brightness on Linux in the way I like (Pressing brightness up key should make it go up more than pressing brightness down key makes it go down). It took 20 minutes to make. Used as a keyboard binding.

TODO list program and the list is periodically printed on my desktop with conky

Software to automatically book reservations at good restaurants on Resy. Supported proxies, multi account, automatically running every day and getting reservations in a certain time range, and even something with a USB GSM modem to respond to the confirmation texts you get a day before. Used it until I got banned from Resy :\

Family photo search using CLIP (actually uform) and face labels from Synology NAS. So you can search “winter +christopher” and it will only show pictures of me and sort by the most winter related ones. You can also filter out certain names, search multiple names, click on an image to get images most like it, filter by year, or any combination thereof. Took a couple days to make with Flask, pgvector, and some code to scrape data from the Synology web interface. My family uses it sometimes too though.