On my (lineage) phone I can press "emergency " instead of typing the pin, and then reveal emergency contacts and medical information I choose to put there (allergy’s, medication etc)

the parents job

Trouble is that you send them to school for most of the day, schools aren’t really working with you on this.

Binary data. In the case of lz it was a carefully “corrupted” archive.

“Its easy, right. Just …”

My thinking runs: is it possible to implement the APIs that are called to use google fit, assuming they run through google play services or something

More than once I’ve wondered if I can make something look like google fit to other apps, obviously would have to be on a degoogled rom, which limits its utility for a wider audience.

Its pretty good, for most people there isn’t anything missing

Actions can’t be triggered by workflow dispatch

Pull requests can’t wait for status checks

I think you’re describing protocols rather than algorithms For a chat program you can look at xmpp, or matrix, both are open protocols for chat apps. You can find info about how they communicate in RFCs or Google “xmpp architecture”

https://en.m.wikipedia.org/wiki/XMPP links to the RFCs for that.