1. It never mentions, that you need to clone the repository first in favor of adding the flutter_vst3 as a dependency normally. 2. It never mentions echo_processor_exe.dart 3. It doesn't work on Windows as you need to run `cmake --build .` and `cmake --install . --config release` (or `debug`).
cmake --build .andcmake --install . --config release(ordebug).