Without knowing the details of C, I’ve seen this in other languages and it’s usually something with missing a flush or a buffered output mode or something like that.

Congrats on the almost-3-years! Been there and it’s good to keep celebrating the achievements imho :) I have a mini celebration each year to reflect on all that’s happened since I stopped doing drugs and it’s only for the better, even though the craving never fully goes away for me.