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As a background, vim modelines is a magic comment in the text file that sets some of the vim options. It is similar to emacs' file variables.
A modeline like ;; vim: set expandtab : in a lisp file enables the option expandtab which convert tab character to spaces.
Is there a package that does emulation of vim modelines for emacs?
Surprisingly enough, there is such a thing: https://github.com/cinsk/emacs-vim-modeline
I'd recommend to add file-local or directory-local variables to the affected files though. Alternatively, using https://editorconfig.org/ for an editor-agnostic way to specify configuration.
