[mst]

Your emacs config may.

Their emacs configs didn't.

Hopefully most distros' default emacs installs do the right thing these days but it's not something I've checked because these days pretty much everybody already has a setup that works for YAML because of how prevalent it is.

(I like YAML for just-about-human-editable data structures but then people try to text template it rather than actually treating it as data and then I want to cry)