How to set up Alpine as a wireless router

From Alpine Linux

Pi Zero W Wireless Router

This is a page to describe building a Wireless Access Point with two wired ethernet ports for building a home router that connects to the internet with one wired port, and internal Lan with the second wired port and the on-board WiFi.

References

udhcpc
ez-ipupdate
Dynamic_DNS
Alpine Linux Bridge
Connect to wireless AP
dnsmasq listen restrictions
Disable IPV6
dnsmasq Docs
HostApd Docs

Pi Specific

Pi Wifi Repeater
WiFi Bridge
Alpine Install

Not Related, but Interesting

AP and Managed Mode
AP and MQTT