maps_inject.m

@import Darwin;
@import ObjectiveC;
@import CloudKit;

extern bool GEOConfigGetBOOL(int feature, void* something);

// Hooks feature flags in a resigned Maps.app to return true.
// Usage:
// clang -shared -fmodules -o libmaps_inject.dylib maps_inject.m \
//   "$(xcrun
//   --show-sdk-path)/System/Library/PrivateFrameworks/GeoServices.framework/GeoServices.tbd"
// cp -a /System/Applications/Maps.app ./
// codesign --remove Maps.app/Contents/MacOS/Maps
// DYLD_INSERT_LIBRARIES=./libmaps_inject.dylib Maps.app/Contents/MacOS/Maps
#define DYLD_INTERPOSE(_replacement, _replacee)                               \
  __attribute__((used)) static struct {                                       \
    const void* replacement;                                                  \
    const void* replacee;                                                     \
  } _interpose_##_replacee __attribute__((section("__DATA,__interpose"))) = { \
      (const void*)(unsigned long)&_replacement, (const void*)(unsigned long)&_replacee}

bool wdb_GEOConfigGetBOOL(int feature, void* something) {
  if (feature == 5) {
    NSLog(@"config get VectorKitDebugConfig_AllowNonSupportedDeviceAdvancedMap");
    return true;
  }
  NSLog(@"config get bool %d", feature);
  return GEOConfigGetBOOL(feature, something);
}

DYLD_INTERPOSE(wdb_GEOConfigGetBOOL, GEOConfigGetBOOL);

// Our resigned Maps app doesn't have iCloud access, so disable iCloud.
// (Not necessary if you're running with SIP off and injecting into the real
// Maps app)

id wdb_CKContainer_initWithContainerID_hook() { return nil; }

id wdb_CKContainer_initWithContainerID_options_hook() { return nil; }

__attribute__((constructor)) void wdb_hook_init() {
  Class ckContainerClass = [CKContainer class];
  Method method1 = class_getInstanceMethod(ckContainerClass, @selector(initWithContainerID:));
  method_setImplementation(method1, (IMP)&wdb_CKContainer_initWithContainerID_hook);
  Method method2 = class_getInstanceMethod(ckContainerClass, @selector(initWithContainerID:
                                                                                   options:));
  method_setImplementation(method2, (IMP)&wdb_CKContainer_initWithContainerID_options_hook);
}

Thank you for the solution.

On Ventura: 3D globe view is still fully functional, but 3D city maps seem to crash every time you zoom in to a city with that feature, i.e. San Francisco, Paris, London etc. Hopefully there is still a fix for this.