{ description = "A devShell example"; inputs = { nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable"; rust-overlay.url = "github:oxalica/rust-overlay"; flake-utils.url = "github:numtide/flake-utils"; }; outputs = { self, nixpkgs, rust-overlay, flake-utils, ... }: flake-utils.lib.eachDefaultSystem (system: let overlays = [ (import rust-overlay) ]; pkgs = import nixpkgs { inherit system overlays; }; in with pkgs; { devShells.default = mkShell { buildInputs = [ openssl pkg-config eza fd rust-bin.beta.latest.complete clippy rust-analyzer perf-tools linuxPackages_latest.perf ]; shellHook = '' alias ls=eza alias find=fd ''; }; } ); }