Not sure if someone has already done this, but I had a go at making a super bare bones Vim plugin: https://github.com/ChrisWellsWood/roc.vim
It has syntax highlighting and indentation at the moment. I based most of the syntax rules on https://github.com/ElmCast/elm-vim. I've not tested it very thoroughly, but it's much better than working with nothing!
Last updated: Jul 05 2025 at 12:14 UTC