{ description = "IW support"; inputs = { nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable"; flake-utils.url = "github:numtide/flake-utils"; flake-compat = { url = "github:edolstra/flake-compat"; flake = false; }; }; outputs = { self, nixpkgs, flake-utils, flake-compat }: flake-utils.lib.eachDefaultSystem (system: let pkgs = import nixpkgs { inherit system; overlays = [ (final: prev: rec { jre = prev.adoptopenjdk-hotspot-bin-11; jdk = jre; }) ]; }; in { devShell = with pkgs; mkShell { buildInputs = [ jre ammonite coursier bloop sbt scalafmt nodejs-16_x ]; }; }); }