Haha, the emoji thing was something I was doing for about a week or so. You see emojis used a lot more around Rust I guess. I never bothered to remove them. I think the bugs around the PID are fun. The ones in the comments might go at some point, though I didn't experience any problems with editors (Helix, Emacs, and VSCode all work) so far.
Should I maybe disabled printing emojis to standard output in the REPL if terminal colors are disabled as well?