I like to work on low-level projects. I've streamed x86 and ARM64 assembly language, C and C++, and Rust projects.
At the moment, I'm working on a compiler for a programming language I call Basecode.
With one exception -- that I had to terminate for other reasons -- I stream only open source projects that I have complete ownership over. I don't typically have to worry about exposing keys or passwords.
I would always be worried that someone would catch a glimpse of a private key or API secret, how do you deal with that?