I don’t know if going open source for petitions is the most effective way, politically speaking. You have better luck for results with a tool that’s recognised by whatever authority has jurisdiction.

Example for Europe : https://www.europarl.europa.eu/at-your-service/en/be-heard/petitions

I don’t know about the USA, but I believe it is a right protected by the 1st amendment

C’est ce que j’utilise, y’a un bloquage à partir dune bdd de notes des numéros, et tu peux rajouter toi même ta liste de blocages

https://f-droid.org/fr/packages/dummydomain.yetanothercallblocker/

Édit :bonus ma liste noire

Also “threaten”

Good job Romanians, let’s watch how this Dan guy does in other aspects of politics, and keep him accountable