> The actionable items are "write code" and "build systems".

Indeed. At the parent page of https://www.activism.net/cypherpunk/manifesto.html (https://www.activism.net/cypherpunk/), you can read:

"if you want to write code, go to OpenPrivacy.org":

> https://www.openprivacy.org/

This website perhaps gives you some inspirations.