Hobby Resources

1 Computing

Proxmox - Virtualization hypervisor
Docker - Virtual Containers
Netbox - IP Address Management and Datacenter Infrastructure Management

2 Amateur Radio

ARRL - The Amateur Radio Relay League
qrz.com - Practice exams, news, forums
FCC ULS License Search - Look up US Amateur Radio licensees

3 Electronics

Digi-Key - Massive electronics distributor, US based
arduino.cc - Official arduino website
Pine64 - Single board computers (and ARM laptops/tablets/smart watches/smart phones)

3.1 Home Automation

Home Assistant - The core of my home automation system
ESPHome - ESP32 microcontroller firmware to make connecting everything to Home Assistant easier

3.2 Telecom

Graybar - Successor to Western Electric, commercial supplier