Ghostty is extremely performant. I had a bug in some concurrent software; when I added logging the bug would disappear because the threads acquiring the lock on STDERR was sufficient to make the bug go away. On Ghostty this happened fast enough that I was able to reproduce the bug.
Maybe I should have been writing everything to a file. ¯\_(ツ)_/¯ Anyway, I didn’t think of it at the time and Ghostty saved me.
Not much chance of that at this point - I'm almost 50 years old and managed to make a living purely from performing so far (with a small exception of the pandemic, where I did coding mainly)