I love Cory Doctorow. Can highly recommend his novels as well!

In Germany there is some movement on this topic:

• The Prototype Fund (funds small FOSS projects)
• The Sovereign Tech Agency and Sovereign Tech Fund (funds companies, communities and individual contributors that commit to several fundamental FOSS projects like Maven)
• Zendis (the Centre for Digital Sovereignty, that is for example contracting several FOSS companies like Next Cloud to build an office software suite called Open Desk for the German administration)

OpenRA comes to mind.

German center for digital sovereignty (ZenDiS) is working on an office solution for the German administration called Open Desk.

If you are already using MD, perhaps you like to try Obsidian.