This looks really useful. I have a home server with various VMs and containers, but I don't do server admin very often, so whenever something breaks I have to find out how to fix it each time. Having terminals in a document just like you can mix code and documentation in a Python notebook can probably make admin easier for people like me who do it rarely. And of course in a professional setting something like this improves the bus factor in a lot of projects if you can keep things documented.