board

LGT8F328P-LQFP32 MiniEVB Alternative Arduino Nano V3.0 ATMeag328P HT42B534-1 SOP16 USB

https://www.aliexpress.com/item/33009594210.html

info

https://www.avrfreaks.net/forum/forbiden-tech-china-has-arrived?page=all

https://www.electrodragon.com/w/Logicgreen

swd

it uses SWD for programming:

https://www.geek-workshop.com/thread-26461-1-1.html

https://github.com/LGTMCU/LarduinoISP

Arduino

https://github.com/wemos/Arduino_XI

https://github.com/LGTMCU/Larduino_HSP

https://github.com/dbuezas/lgt8fx -- installable from board manager, most recent but not real upstream