A MacBook deck below the fold

The full Apple silicon keyboard and a glass trackpad share the lower half of the iPhone Duo. Nothing sits in the 40pt fold band or the home indicator zone.

Fold band, reservedy 455.5 to 495.5
Home indicator zoney 917 to 951
Usable deck669 × 421.5 pt
Key unit pitch, 14.5 units across45.3 pt
Letter key41.3 × 40 pt
Function row26 pt tall
Keyboard, 6 rows653 × 246 pt
Space bar223 × 40 pt
Trackpad448 × 146 pt
Vertical budget7 + 246 + 12 + 146 + 10.5

It fits. Every MacBook key is there and every main key stays 40pt tall. The cost is the trackpad: 3.1 to 1 instead of a MacBook's 1.6 to 1, because height runs out long before width does. Gaps are 4pt and the function row 26pt to buy it room.

Shift and command latched with one tap each, lit green like caps lock. C pressed sends ⇧⌘C.
two fingers: scroll
Two fingers on the trackpad scroll the Mac. Caps lock on, lit like the real key.