Suggest to add a license, perhaps MIT or ISC? Thanks!

In which way, do you mean? If you want to use iit, be my guest! :)

Oh, I mean using the License feature of Observable. For example this one is ISC licensed https://observablehq.com/@d3/orthographic-to-equirectangular There should be some dropdown that says "Add License" somewhere in the UI.

Ah, cool, that's a feature I hadn't seen yet :) Will do Hmm, I have to read up on them first :P Which one do you recommend? I want the most permissive one, free use whatever -- except maybe it's fine if it disallows, like, making disproportional amounts of money without attribution or something haha :)

I would recommend ISC. It seems most popular nowadays. Thanks again!