Ask HN: Most interesting tech you built for just yourself?

I co-organized a weekly hacknight meetup of 40-70 people.

I wrote a script to make Anki spaced repetition flash card decks with avatars and names pulled from the meetup API. I would use GitHub Actions to run the script a few hours before the event, then drop the importable deck into a Google Drive folder. I'd review the deck before the meetup, and then at the event, I'd not stress about names. I'd pretend to introduce myself to new people like I didn't already know their names, but I'd be able to make them feel very welcome when I remembered, or introduced them to others.

Why do this arguably creepy thing? Because I am really forgetful with names, and when I forget, I become reluctant to approach people, which comes across as less friendly than I prefer to be. But I believe using people's names is REALLY important to community organizing. When I know names, I am really great at using them a lot, helping others learn them, generously making introductions, and helping people to feel a sense of belonging.

It was the best community organizer hack I ever came up with, until meetup locked down their API and broke it...!

https://github.com/CivicTechTO/anki-meetup-memorizer

I could see this being useful for work stuff. Learn the names and faces of all the people in your department as well as other info like what projects they're working on, expertise they have (this person knows all about databases, that person knows Linux really well, etc.), who they report to, etc.

Then when it's time to collaborate on something, or when you need to keep the appropriate people in the loop, hopefully the right people just pop into mind. And if you get invited to a meeting with 5 people you don't normally work with, you can probably make an educated guess why they're attending.