Well they are both "just HTML", Datastar being better about being spec compliant using the dataset attributes and all.
By expanding the "Datastar expression" language, do you mean a compiled language or moving all the expressions into JS files or something else?
> By expanding the "Datastar expression" language, do you mean a compiled language or moving all the expressions into JS files or something else?
Doesn't matter. They literally already have a Javascript-like DSL: https://data-star.dev/guide/datastar_expressions