{ description = "Dev shell"; # Flake inputs inputs = { nixpkgs.url = "github:nixos/nixpkgs/nixos-unstable"; }; # Flake outputs outputs = { self, nixpkgs, ... }: let allSystems = [ "x86_64-linux" # 64-bit Intel/AMD Linux "aarch64-linux" # 64-bit ARM Linux "x86_64-darwin" # 64-bit Intel macOS "aarch64-darwin" # 64-bit ARM macOS ]; forAllSystems = f: nixpkgs.lib.genAttrs allSystems (system: f { pkgs = import nixpkgs { inherit system; }; }); in { devShells = forAllSystems ({ pkgs }: { default = pkgs.mkShell { packages = (with pkgs; [ python313 onefetch uv ruff ]); shellHook = '' onefetch uv sync ''; }; }); }; }