Bit-Banged usb?

[NoNamedCat]

Do you think that bit-banging USB 1.0 is possible with this MCU?
I did a quick search of repositories on github and I found this:
https://github.com/xobs/grainuum
https://github.com/ads830e/stm32f030-vusb
https://github.com/lemcu/LemcUSB
I think only in the possibilities of a usb bootloader in this small chip.
CNLohr was doing this with the CH32V003:
https://github.com/cnlohr/rv003usb
This is the video of his project:
https://www.youtube.com/watch?v=j-QazXghkLY

[NoNamedCat]

BTW the boards that i designed just arrived today. Tomorrow I will solder some of them and I will test the design.

[IOsetting]

That's impressive! I guess it is possible, considering that the emulation appears to be based on GPIO and EXTI.