Flake: how make nixpkgs' self follow another input's nixpkgs?

[danieldk]

There was another thread with the same question a few days ago. See:

Nix flake to aggregate and concurrently update some dependencies

I do something like that (closed repository, sorry). I have a syntaxdot flake which has a nixpkgs and utils inputs. Then I use these inputs in another flake syntaxdot-models (the rec might be superfluous?): { description = "SyntaxDot models"; inputs = rec { nixpkgs.follows = "syntaxdot/nixpkgs"; syntaxdot.url = "github:tensordot/syntaxdot"; utils.follows = "syntaxdot/utils"; }; outputs = { self, nixpkgs, syntaxdot, utils }: { # ... }; } (I don’t think this was docu…