@robbplo/hyperterm-summon/modules/toggle.js

Summon your Hyperterm windows with a system-wide hotkey

const { hideWindows, showWindows } = require('./windows');

module.exports = app => {
  const focusedWindows = [...app.getWindows()].filter(w => w.isFocused());

  focusedWindows.length > 0 ? hideWindows(app) : showWindows(app);
};