[+] Moved to an overlay system, so you don't need to flash whole system image
[+] Updated printer.cfg & scripts for 2.3.5.3
Update notes:
Please update to 2.3.5.3 through system info (OTA) and then try to install new DuckPro
Your printer.cfg will be moved to printer_pre2.3.5.3.cfg, so new printer.cfg with cs1237 will be installed automatically, if you know what you're doing, then grab new cs1237 block and use your old printer.cfg if needed