What do you use, if anything, for linking between your notes? I'd ideally like to move to just plain markdown/text files, but being able to link notes together

What do you use, if anything, for linking between your notes? I'd ideally like to move to just plain markdown/text files, but being able to link notes together seems like an essential feature. Vimwiki seems to have support for linking and navigating between notes within markdown, but then I don't think Markor would be able to handle them, and it doesn't seem like there's any automated way to update references if a link is moved. I've considered writing some small scripts to automate the gaps, but then it starts to feel like I'm just designing another note app.