{ stdenv
, lib
, fetchFromSourcehut
, gitUpdater
, hare
, hare-ev
, hare-json
}:

stdenv.mkDerivation rec {
  pname = "bonsai";
  version = "1.0.0";

  src = fetchFromSourcehut {
    owner = "~stacyharper";
    repo = pname;
    rev = "v${version}";
    hash = "sha256-jOtFUpl2/Aa7f8JMZf6g63ayFOi+Ci+i7Ac63k63znc=";
  };

  nativeBuildInputs = [
    hare
    hare-ev
    hare-json
  ];

  preConfigure = ''
    export HARECACHE=$(mktemp -d)
    # FIX "ar: invalid option -- '/'" bug in older versions of hare.
    # should be safe to remove once updated past 2023/05/22-ish.
    # export ARFLAGS="-csr"
  '';

  installFlags = [ "PREFIX=" "DESTDIR=$(out)" ];

  passthru.updateScript = gitUpdater {
    rev-prefix = "v";
  };

  meta = with lib; {
    description = "Bonsai is a Finite State Machine structured as a tree";
    homepage = "https://git.sr.ht/~stacyharper/bonsai";
    license = licenses.agpl3;
    maintainers = with maintainers; [ colinsane ];
    platforms = platforms.linux;
  };
}