It isn’t just deployed by nerds but sometimes also by cafes, libraries and municipalities. So you can expect them to be in every town but they don’t have such a dense coverage that they have a full mesh network over a city.
And the thing that is missing is that there are no inter network services like an copy of Wikipedia, LLMs or fileshares.
They have their own antennas. If the internet connection of one router dies, but it has a connection to another Freifunk node, it gets routed over the other one.
There is freifunk in Germany they use Mesh Network -> Router > VPN to another Country so they dont get Problems by People pirating.
NO, an attacker getting control over a vps used as a tunnel could not read Data captured in the past. Also they could not do a MITM with decrypted SSL without breaking HSTS
But having a reverse proxy would enable someone getting access to it to read traffic, while having a VPN Tunnel won’t.
Alibaba also provides an OpenSource App, it even has support for their multimodal voice chat Model qwen2.5 omni: https://github.com/alibaba/MNN
Des, it has, what most others lack: Single Sign In and many Apps.
Here is a map of all access points in Hamburg, I preselected an acesspoint that has a large mesh network: https://map.hamburg.freifunk.net/#!v:m;n:d8473253afe8