Welcome @freevryheid and thank you for this. I haven’t heard of Kakoune before this so I went to take a look and may even try it.
this is strictly free-form format and I don’t have plans right now to develop kak syntax for pre-f90 or fixed format files.
This seems sensible to me. With f90.kak, will Kakoune render a .f file without any syntax highlighting or will it assume free-form for that as well?