Hey! That's quite the jump! Going from KEIL/IAR and FreeRTOS to RT-Thread Studio is a change, but I'm sure you'll get the hang of it. While I don't have a specific T113-S3 template, I found some helpful RT-Thread tutorials online that got me started. Have you checked out the RT-Thread documentation? Sometimes exploring different projects can give you inspiration. BTW, Do you play basketball? I have a similar experience when I started playing Basketball Stars. But by exploring different matches, I gain more experience from other players.