There are kits to retrofit (pun intended?) usb or bt keyboard functionality into mechanical typewriters[1], though judging by the prices they charge for the fin

There are kits to retrofit (pun intended?) usb or bt keyboard functionality into mechanical typewriters[1], though judging by the prices they charge for the finished product, it must be fairly involved... 1: https://www.usbtypewriter.com/products/easy-conversion-kit https://www.usbtypewriter.com/products/easy-conversion-kit