It seems like Left is based in Electron, maybe you can dive their docs and find a solution, I think it´s very possible
Thanks for your reply. I'm not a coder but I'm putting this here because it does seem relevant to your idea. It's "[a] library to store and restore window sizes and positions for your Electron app": GitHub - mawie81/electron-window-state: A library to store and restore window sizes and positions for your Electron app