flake.nix

{
  description = "Monorepo";

  inputs = {
    fenix = {
      url = "github:nix-community/fenix";
      inputs.nixpkgs.follows = "nixpkgs";
    };
    nixpkgs.url = "nixpkgs/nixos-unstable";
    flake-utils.url = "github:numtide/flake-utils";
  };

  outputs = { self, nixpkgs, flake-utils, fenix }:
    flake-utils.lib.eachSystem [
      flake-utils.lib.system.x86_64-linux
      flake-utils.lib.system.aarch64-darwin
      flake-utils.lib.system.x86_64-darwin
    ]
      (system:
        let
          overlays = [ fenix.overlay ];
          pkgs = import nixpkgs { inherit system; config.allowUnfree = true; };
        in
        {
          devShell = pkgs.mkShell {
            buildInputs = with pkgs; [
              cargo
              clang
              clippy
              beam.packages.erlangR25.elixir_1_14
              erlangR25
              (fenix.packages."${system}".complete.withComponents [
                "cargo"
                "clippy"
                "rust-src"
                "rustc"
                "rustfmt"
              ])
              gdb
              gcc
              glib
              gnumake
              nodejs-16_x
              openssl
              pkg-config
              postgresql_13
              redis
              ssm-session-manager-plugin
              stripe-cli
              terraform
              vips
            ] ++ lib.optionals stdenv.isLinux [
              inotify-tools
            ] ++ lib.optionals stdenv.isDarwin [
              darwin.apple_sdk.frameworks.Foundation
              darwin.apple_sdk.frameworks.Carbon
              darwin.apple_sdk.frameworks.AppKit
            ];
            shellHook = ''
              mkdir -p .nix-mix
              mkdir -p .nix-hex
              export MIX_HOME=$PWD/.nix-mix
              export HEX_HOME=$PWD/.nix-hex
              export PATH=$MIX_HOME/bin:$PATH
              export PATH=$MIX_HOME/escripts:$PATH
              export PATH=$HEX_HOME/bin:$PATH
            '';
          };
        });
}