This is the fella behind ReticulumPrepperNetwork? and he is autistic! - https://unsigned.io/articles/2024_05_16_Are_We_There_Yet.html
"Reticulum is Unstoppable Networks for The People."
https://reticulum.network/manual/Reticulum%20Manual.pdf
This is an idea to re-invent networking and such to be resiliant to disasters. And to work with several underlying infrastructures, both wireless and wired.
https://www.vice.com/en/article/88g7pb/this-prepper-is-building-a-post-apocalyptic-internet
https://github.com/markqvist/reticulum
This is an interesting system assembled from various Reticulum pieces. - https://pypi.org/project/nomadnet/0.0.3/
And here are some instructions, though you can also find more in the PDF far above - https://unsigned.io/rnode_bootstrap_console/s_nn.html
This is a reproducable Reticulum network node ala https://unsigned.io/rnode_bootstrap_console/index.html
Then, there is this "thing" - Rnode
https://unsigned.io/website/rnode/
This fella also makes TNC and radio modems: https://unsigned.io/website/hardware/OpenModem.html