Maybe offpunk could fit? I’ve never used it but I read the blog post about it

Same! I even manage three different configs with the same flake!

There’s LaserWeb but apparently it doesn’t support closed source (Chinese) firmware so you’d need to change your laser’s controller…

Exactly this. In a federated network, the instance with the majority of users could dictate the protocol, forcing the smaller issues to continually adapt or die. See this post for a very real example of this.