Probably good starting point would be to follow what Coq/Rock track have done: GitHub - exercism/coq: Exercism exercises in Coq. (I assume rather than tests it would be nice to have proofs that type check :) )
That’s an abandoned WIP track so it’s perhaps not the best example. Isaac’s link covers what broadly needs to be done.
Traditionally, we need an example of what the “Hello, World!” exercise would look like in your language, and if it looks good, Jeremy or Erik will set up an Exercism GitHub repo for this language. You and any volunteers can then build out the track inside the repo, following the steps in Isaac’s link.