My single-seat #meshlocal is still not for real ten years old, and sometimes still eat most of my night. Latest experiments allowed it to:

Have the meshlocal router running both a 802.11s hardwired wifi mesh, and an ordinary Master wifi hotspot, both on the same physical interface

While both wifi have (and provide ! ) Internet connectivity, they are also isolated from the home lan (ISP box etc) but Yggdrasil autopeering crosses

I learnt over time how to explain #mesh https://openmesh.clewn.org