mach-detours

An instrumentation library for modern arm64 macOS.

mach_override is no longer maintained and doesn't run on arm64 or modern macOS with tightened security.
Microsoft-Detours is Windows only but supports arm64.
mach-detours is based on Microsoft-Detours, but adapted to macOS (using mach/mach.h system functions), and limited to only arm64.

Tested on M4 Pro running macOS 15.1.