Edited to add at the bottom of this post"
A suggestion from an old person:
Back in the day we used to have "networks" of contacts who shared information via "underground newspapers that were made available in for example particular respectable business store fronts.
If you haven't started a 2025 version of this, it might be time now, and don't rely on only a digital format.
Yes, printed paper can be discovered but also easily destroyed: in an emergency drop it down an sewer grate; set it on fire...use your imagination and develop relationships with people you know and trust.
as pointed out in the replies, be cautious about reproducing printed material due to "fingerprints" left behind on digital "machines".
My suggestion: Perhaps reviving old methods like mimeograph machines is an option.