OliveTin
OliveTin gives safe and simple access to predefined shell commands
...However, writing your own shell scripts is a great way to extend OliveTin. Uses only a few MB of RAM and barely any CPU. Written in Go, with a web interface written as a modern, responsive, single-page app that uses the REST/gRPC API. Helps potential contributors be consistent, and helps with maintainability. Available for quickly testing and getting it up and running, great for the self-hosted community. Passes all the accessibility checks in Firefox, and issues with accessibility are taken seriously.