I agree, ReScript has no big adoption (hopefully yet), and that's the biggest disadvantage in comparison with TypeScript.
But somebody has to do the first steps...
There's some project to get TS type annotations to work for ReScript. It'd be great if ReScript could lift on the work done by the TS community to produce types for many common JS libs.
I wonder how would that work. Typescript has pretty advanced types like Template Literal Types[0]. Wouldn't ReScript need to support all those types? Or maybe it just resorts to `any` equivalent if I can't map a TS type to ReScript type.