ATAboy is a USB adapter for legacy CHS only style IDE (PATA) drives

PATA-SATA adapters, the $3 AliExpress kind, seem to handle CHS fine. I have dumps of 40Mb and 200Mb drives from such adapters.

The Raspberry Pi Pico is good for a lot of things; this is not one of them (due to the lack of at least USB 2.0 High Speed). An LPC18xx, LPC43xx or even IMXRT106x would've been a much better choice.

Aand it's vibe-coded. Nope. There are zillions of PATA USB adapters available on secondary markets that work.