There is this steadily growing activist group that you could join up with.

We use OpenProject at my job and its pretty good. You can use the Nextcloud as a document repository and integrate it with OpenProject.

Coq cowardly renamed their project because of this.

Bruce Perens is working on something related with the Post-Open license.

Its Lunduke, a self-proclaimed a-political tech journalist. You can pretty much disregard anything that spews from his mouth.

A self-hosted sourcehut instance might be what you are looking for.