Possiblity of using a USBTiny instead of USBasp

[repercussion]

Hoping you might let me know if it's possible to burn the bootloader and subsequently flash firmwares using USBTiny in lieu of USBasp. Simply replacing the programmer in the makefile.inc will get something burnt, but the pinout in incorrect. Almost everything works, but I can't flash firmwares and a couple switches don't seem to be working.

Very much appreciate it!