flake.nix

{
  inputs = {
    nixpkgs.url = "github:NixOS/nixpkgs/nixos-25.11";
    flake-utils.url = "github:numtide/flake-utils";
  };

  outputs =
    { self
    , flake-utils
    , nixpkgs
    , ...
    } @ inputs:
    (flake-utils.lib.eachDefaultSystem (system:
      let
        pkgs = import nixpkgs { inherit system; };
        jdk = pkgs.openjdk25;
        sbt = pkgs.sbt.override { jre = jdk; };
      in
      rec {
        devShell = pkgs.mkShell {
          # This fixes bash prompt/autocomplete issues with subshells (i.e. in VSCode) under `nix develop`/direnv
          buildInputs = [ pkgs.bashInteractive ];
          packages = with pkgs; [
            git
            jdk
            sbt
          ];
        };
      })
    );

  nixConfig = {
      extra-substituters = [
        "https://cache.iog.io"
        "https://iohk.cachix.org"
        "https://cache.nixos.org/"
        "https://nix-community.cachix.org"
      ];
      extra-trusted-public-keys = [
        "hydra.iohk.io:f/Ea+s+dFdN+3Y/G+FDgSq+a5NEWhJGzdjvKNGv0/EQ="
        "iohk.cachix.org-1:DpRUyj7h7V830dp/i6Nti+NEO2/nhblbov/8MW7Rqoo="
        "cache.nixos.org-1:6NCHdD59X431o0gWypbMrAURkbJ16ZPMQFGspcDShjY="
        "nix-community.cachix.org-1:mB9FSh9qf2dCimDSUo8Zy7bkq5CX+/rkCWyvRCYg3Fs="
      ];
      allow-import-from-derivation = true;
      experimental-features = [ "nix-command" "flakes" ];
      accept-flake-config = true;
    };
}