I took the same approach with pulumi and now I have a fully declarative but flexible homelab configuration: https://github.com/vnghia/homelab

This is also one reason why I am hesitant for a NAS. They might run on their own OS and have their own private format while I dont want to be vendor locked in in any ecosystem

This is an interesting option but the main drawback is it is too big for my place currently. But I will absolutely consider it in the future