Homelabs

Does any device or open source project like this exist?

- Creates a close range wireless network
- With a separate WiFi stack, joins another  network and shares internet access
- Provides VPM, PiHole, etc.-like services on top

Use case is using devices together on a physical private network, on public WiFi.

Co-founder XMTP, building web3's secure messaging layer ➡️ https://xmtp.org

This is a pocket router. There are some prebuilt or you can build your own with a raspberry pi.

Links? Just to clarify, if I run the router software on the Pi, and run the same software on another Pi, they will link and share internet packets?

I have seen a lot of stuff with mesh networks, especially with Meshtastic, but I assumed that was for text messages really.

This is a prebuilt pocket router
https://www.amazon.com/GL-iNet-GL-AXT1800-Pocket-Sized-Extender-Repeater/dp/B0B2J7WSDK
A video about building a Pi router.
https://www.youtube.com/watch?v=jlHWnKVpygw