{ description = "A Nix-flake-based Kotlin development environment"; inputs = { flake-utils.url = "github:numtide/flake-utils"; nixpkgs.url = "github:NixOS/nixpkgs"; }; outputs = { self , flake-utils , nixpkgs }: flake-utils.lib.eachDefaultSystem (system: let javaVersion = 17; overlays = [ (self: super: rec { jdk = pkgs."jdk${toString javaVersion}"; gradle = super.gradle.override { java = jdk; }; kotlin = super.kotlin.override { jre = jdk; }; }) ]; pkgs = import nixpkgs { inherit overlays system; }; in { devShell = pkgs.mkShell { buildInputs = with pkgs; [ kotlin gradle gcc ncurses patchelf zlib ]; shellHook = '' ${pkgs.kotlin}/bin/kotlin -version ''; }; }); }