How do you add a new/custom/personal lang to emacs?

[laduke]

Hello,
emacs-tree-sitter is great. I'm using it for a few languages.

I made a small grammer with tree-sitter {generate,parse,highlight} and it's working well enough. I'm not sure how to get it into emacs now. It would not be worth putting somewhere public like melpa or the tree-sitter-langs repo.