miniblog.

I've never seen a JIT with an "eject" option. If I'm happy with the steady-state performance of my system, I'd rather disable the JIT and lose additional optimisation in favour of removing the tracing overhead. Do any languages offer this?

If function f1 is unused, and f2 is only called from f1, Rust complains that both f1 and f2 are unused. I find this confusing: it's useful to know that I can remove both functions, but removing f2 alone gives a compile error. Not sure what the best tradeoff is though.

Purgecss is a really cool tool for removing unused CSS based on an analysis of your HTML. For example, unused classes. https://www.purgecss.com/ This gives CSS libraries much more scope to add features without hurting bundle size!