I exchanged emails with Mustafa and was able to get the issue resolved.

I was seeing a series error messages when attempting the sketch:

avrdude: stk500v2_getsync(): timeout communicating with programmer avrdude: stk500v2_ReceiveMessage(): timeout avrdude: stk500v2_ReceiveMessage(): timeout An error occurred while uploading the sketch

Once I set the bootloader to UART0, everything worked fine.