I believe `?` is considered a reserved word (coming from a Bash background)? I might have that terminology wrong, but I’m remembering `[` (single bracket) as a reserved word that equals `test`, or something close to that. Someone may be able to clarify mistakes in my attempt to get into the details with accuracy regarding terminology.

At the very least, it’s a wildcard. I think you’re not wrong about setting an alias (I have an alias for `??` to link as `$?`, for example). I just think the single character usage will create conflicts and unexpected outcomes.

Cool tool, OP. I’ve marked it to check out when I’m at my computer at home.