{ inputs = { nixpkgs.url = "github:NixOS/nixpkgs/nixos-23.11"; flake-utils.url = "github:numtide/flake-utils"; rust-overlay = { url = "github:oxalica/rust-overlay"; inputs = { nixpkgs.follows = "nixpkgs"; flake-utils.follows = "flake-utils"; }; }; }; outputs = { self, nixpkgs, flake-utils, rust-overlay }: flake-utils.lib.eachDefaultSystem (system: let overlays = [ (import rust-overlay) ]; pkgs = import nixpkgs { inherit system overlays; }; rustToolchain = pkgs.pkgsBuildHost.rust-bin.fromRustupToolchainFile ./rust-toolchain.toml; in with pkgs; { devShells.default = mkShell { buildInputs = [ rustToolchain rust-analyzer ]; }; } ); }