[tc43]

> you end up having to tell your colleagues "hey, you need to set your tabs to 4"

Vim's modelines (and Emacs' equivalent) can solve this part at least, no?

[drob518]

Yes, but then how many different editors are people using? What about VSCode? SublimeText? Etc. you’re just trading one problem for another.

[rmunn]

These days .editorconfig compliance is everywhere, thankfully, so there's a cross-platform solution. At least for that bit. (Note that while usually "cross-platform" means OS's, this time it means editors).