To learn to use socket.io as a signalling server and also learn more about websockets,i know socket.io is a websocket not is it a wrapper around it.
To learn testing both on frontend and backend.
To get intuition writing css as i plan to rewrite all the css once i finish taking joshcomeau's css course ,therefore taking my css skills to another level.
To improve my web fullstack development skills before learning mobile , entering ML.AI and DS world.