I'd really like to build this example, but it seems to be failing #3

Is it perhaps out of sync with your library?

D:/esp/link-esp-example/components/link-esp/link/include/ableton/Link.hpp:78:7: required from here
D:/esp/link-esp-example/components/link-esp/link/include/ableton/platforms/esp32/Context.hpp:67:7: error: invalid conversion from 'void*' to 'TaskHandle_t' {aka 'tskTaskControlBlock*'} [-fpermissive]
67 | vTaskNotifyGiveFromISR(userParam, &xHigherPriorityTaskWoken);
| ^~~~~~~~~~~~~~~~~~~~~~
| |
| void*
C:/Espressif/frameworks/esp-idf-v5.1.2-7/components/freertos/FreeRTOS-Kernel/include/freertos/task.h:3038:50: note: initializing argument 1 of 'void vTaskGenericNotifyGiveFromISR(TaskHandle_t, UBaseType_t, BaseType_t*)'
3038 | void vTaskGenericNotifyGiveFromISR( TaskHandle_t xTaskToNotify,
| ~~~~~~~~~~~~~^~~~~~~~~~~~~
ninja: build stopped: subcommand failed.
ninja failed with exit code 1, output of the command is in the D:\esp\link-esp-example\build\log\idf_py_stderr_output_19276 and D:\esp\link-esp-example\build\log\idf_py_stdout_output_19276