network_inventory/flake.nix

{
  description = "A Python API for various tools I use at work.";
  inputs = {
    nixpkgs.url = github:NixOS/nixpkgs/nixos-22.05;
    flake-utils = {
      url = github:numtide/flake-utils;
    };
    poetry2nix = {
      url = "github:nix-community/poetry2nix";
      inputs.nixpkgs.follows = "nixpkgs";
    };
  };
  outputs = { self, nixpkgs, flake-utils, poetry2nix }:
    {
      # Nixpkgs overlay providing the application
      overlay = nixpkgs.lib.composeManyExtensions [
        poetry2nix.overlay
        (final: prev: {
          # The application
          network_inventory = prev.poetry2nix.mkPoetryApplication {
            projectDir = ./.;
          };
        })
      ];
    } // (flake-utils.lib.eachDefaultSystem (system:
      let
        pkgs = import nixpkgs {
          inherit system;
          overlays = [ self.overlay ];
        };
      in
      {
        apps = {
          network_inventory = pkgs.network_inventory;
        };

        defaultApp = pkgs.network_inventory;

        devShell = pkgs.mkShell {
          buildInputs = [
            pkgs.gnumake
            pkgs.python39Packages.poetry
            pkgs.network_inventory
          ];
        };
      }));
}