I have a saas sideline I have been selling for 10 years. Some time ago I settled with the toro php router, mysql, jquery and bootstrap. I do most of my coding in Sublime over ssh i.e. my test sites live in containers on a little core2duo desktop. Each container has it’s own Sublime. I can spin up any sublime, from any project, from any machine on my lan. As it’s internal go for a weak but performant ssh cipher or you will get too much latency. Copies of the same containers are used in the live environment. I have a container running Gitlab for versioning.

The core2duo box cost £25 and I love it. It’s also a file/plex server. Duckdns has also been a great friend. As well as nginx, lets encrypt and basic auth. Keeping in mind this is my test system.