@szbalint For my home data centre, since I forget things on the regular anyway but only come back to this stuff irregularly, and keeping track of stuff on paper was messy and imperfect, I've combined my home documentation repo (so I can remember how to build something) with a systems description repo (so I can remember where I built it). This is done using a Hugo theme I wrote that hijacks data templates so I can describe systems in YAML and render them--or process them somehow later. It works.
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