I have 1 key recommendation: if you're writing shell scripts, use shellcheck. It can detect many problems and hrlp you write better scripts.

Yes! I only wish there was a better interface. Like an editor integration. Just something where you can go through each check line 1 by 1 and consider changing or not. I tried writing this in a simple way but gave up...

In neovim I would recommend setting shellcheck with null.ls or using the bash language server: https://github.com/bash-lsp/bash-language-server

both work really well