@lollisoft Use Atom - the Pymakr standalone is deprecated. Make sure, before installing Atom, that you upgrade Node JS to latest stable release (if you're on older release you'll run in to some issues when installing the Pymakr plugin in Atom). Installing Node JS using homebrew - incase you don't have node installed Upgrading Node JS If you've not used Atom or Pymakr plugin before, see these docs first.