Very welcome and useful initiative. I deeply hate the fact that it's a next.js app (these apps simply should not be an option for the web unless HTML has somehow disappeared without a trace and humanity can't remember that it has ever existed) and not an HTML site with some JS where needed / useful. I suppose I understand the appeal and the convenience from a development point of view.
Open-sourcing the code is commendable and I'm happy to see this.
> Do you know of any additional countries public donation datasets that are actually machine-readable (CSV/JSON/API)?
I recently came across https://banipartide.ro/ but I'm not entirely sure whether they made all their data machine-readable. I found this: https://db.banipartide.ro/banipartide/Venituri+anuale+din+ra...