Raspberry pi or other compact linux machine with code-server running in docker. Gets you a web UI that works from anything (ie iPad) and you can do docker-in-do

Raspberry pi or other compact linux machine with code-server running in docker. Gets you a web UI that works from anything (ie iPad) and you can do docker-in-docker for other containers. SBCs have less horsepower but you can always run them from a USB battery bank, letting you dev on the go.