Some Pi Pico boards silkscreen Vin on the VBUS pin and mentioning it by that name would make it simpler for novices to assemble their own ps2x2picos.
...as well as improve the confidence of people like me who had to read a page like this that says "The VBUS (USB Power Input) is the micro-USB input voltage. So, if you’re powering the Raspberry Pi Pico via the USB port using 5V, you’ll get 5V on the VBUS pin. " and then think "OK, that's my sanity check. It's being powered by the PS/2 port, so it takes a 5V feed over the Vin pin."
Some Pi Pico boards silkscreen
Vinon theVBUSpin and mentioning it by that name would make it simpler for novices to assemble their own ps2x2picos....as well as improve the confidence of people like me who had to read a page like this that says "The VBUS (USB Power Input) is the micro-USB input voltage. So, if you’re powering the Raspberry Pi Pico via the USB port using 5V, you’ll get 5V on the VBUS pin. " and then think "OK, that's my sanity check. It's being powered by the PS/2 port, so it takes a 5V feed over the Vin pin."