I am really bad at designing PCBs and was wonder if someone could give me advise and maybe even make this better. [https://oshwlab.com/johnronald431/sstc](https://oshwlab.com/johnronald431/sstc) [https://i.imgur.com/1nwyyah.gif](https://i.imgur.com/1nwyyah.gif) I want to also add an audio option for it, so if someone can help with that as well, I would greatly appreciate it. Thanks!