flake.nix

# flake.nix — canonical Go LIBRARY (GSDS Biblioteca) consuming substrate's
# go-library-flake builder.
#
# The substrate Go builders are import-PATHS that return WHOLE-FLAKE outputs
# (packages / devShells / apps / overlays). They are called in two stages at
# the TOP LEVEL — first `import <path> { inherit nixpkgs; forge? }`, then the
# spec attrset `{ name; src; … }`. There is NO flake-parts `perSystem` wrapper:
# the builder already fans out across systems internally.
#
# packages.default = mkGoLibraryCheck → `go build ./...` in the Nix sandbox
# (build-verification, installs no binary). vendorHash = null because errors-go
# is pure-stdlib (zero external deps).
{
  description = "errors-go — pleme-io's standard error model for Go (Biblioteca)";

  inputs = {
    nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
    substrate = {
      url = "github:pleme-io/substrate";
      inputs.nixpkgs.follows = "nixpkgs";
    };
  };

  outputs = inputs @ { self, nixpkgs, substrate, ... }:
    (import substrate.goLibraryFlakeBuilder { inherit nixpkgs; }) {
      name = "errors-go";
      version = "0.1.0";
      src = self;
      vendorHash = null; # pure stdlib — no external dependencies
      repo = "pleme-io/errors-go";
    };
}