probably a better banner?

[aarmn]

Hello there, I come from the charm comment section, I was wondering how you print that banner text, and I always wanted to get it printed cross shell and on top of my term, but I also like to avoid it to reprint when I run a shell in shell, when I asked in charm yt, sb (probably you) mentioned me to come and check here I guess you may want this improvement: That check would stop reprint of the text when you run a zsh inside another shell (e.g. another zsh), I guess that's the expected behavior, no pressure, it's my suggestion

[ErtanTaner]

Your PR have conflicts @aarmn