Short version

How to form an Internet Resiliency Club:

Collect a group of internet-y people within ~10 km of each other
Decide how to communicate normally (Signal, Matrix, email, etc.)
Buy everyone LoRa (Long Range) radios and a powerbank with trickle charge
Install Meshtastic on the LoRa radios
Choose a LoRa channel to communicate on
Organize meetups, send messages over Meshtastic, have fun