Unfortunately, it's a pity that pongoOS can no longer be compiled...

[HODAKdev]

ld: symbol(s) not found for architecture arm64.

Same

[ElectroBoy404NotFound]

There a solution here: #85 (comment)

[sonic011gamer]

Compile with Clang 15, add -Wno-unused-but-set-variable to the makefile if you get an error about -Wunused-but-set-variable.