Chore: Improve downstream usabillity.

[hsjobeki]

Remove all dependencies.

Dev and check dependencies can be added back in a seperate flake.nix:

Like in:

• https://github.com/ipetkov/crane/tree/master/test
• https://github.com/nix-community/srvos/tree/main/dev/private

When using this flake properly in a third party library currently the following expression is needed:

inputs = {
....
    systems.url = "github:nix-systems/default";
    treefmt-nix.url = "github:numtide/treefmt-nix";
    treefmt-nix.inputs.nixpkgs.follows = "nixpkgs";

    nixos-facter-modules.url = "github:numtide/nixos-facter-modules";
    nixos-facter-modules.inputs.nixpkgs.follows = "nixpkgs";

    nixos-facter-modules.inputs.systems.follows = "systems";
    nixos-facter-modules.inputs.blueprint.follows = "blueprint";
    nixos-facter-modules.inputs.treefmt-nix.follows = "treefmt-nix";

    blueprint.url = "github:numtide/blueprint";
    blueprint.inputs.nixpkgs.follows = "nixpkgs";
    blueprint.inputs.systems.follows = "systems";
}

NOTE: I MUST override every single input and add transitive inputs to the toplevel of the flake. Otherwise my own downstream users cannot use follow. Every new layer MUST add their own dependencies, which accumulates really fast.

see: NixOS/nix#5790

After this PR:

inputs = {
....
    nixos-facter-modules.url = "github:numtide/nixos-facter-modules";
    nixos-facter-modules.inputs.nixpkgs.follows = "nixpkgs";
}

[Mic92]

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✅ The pull request has been merged automatically

The pull request has been merged automatically at bde1599