miniblog.

I've added syntax highlighting to the prompt of my programming language! It's not strictly necessary, but it's nice to have. It caught a bug with lexing incomplete string literals too.

Rust has an elegant solution to testing private functions: you put the test in the file that defines the function. It generally works well. I've even seen people argue that it makes mocking much less necessary! I've not felt the need to mock in Rust so far.

Fascinating deep dive on Twitch deliberately constructing a 10GiB array to reduce the number of GC cycles in Go: https://blog.twitch.tv/en/2019/04/10/go-memory-ballast-how-i-learnt-to-stop-worrying-and-love-the-heap/ (This trick is no longer necessary in the new Go 1.19 apparently, as it's added a GOMEMLIMIT environment variable.)