How to build ffmpeg_kit_flutter_audio 6.0.3 locally?

[KristijanZic]

So I've managed to build ffmpeg_kit_flutter by following this guide: https://medium.com/@ibrahimeltayfe/how-to-compile-ffmpeg-binaries-locally-for-flutter-android-ios-e66d2e109923

The issue is, I thought I could replace the ffmpeg_kit_flutter_audio package with it but I can't and the commands fail on iOS. I need to run commands like this:

await FFmpegKit.execute(
      '-y -i $audioPath${'  -filter:a "volume=+5dB" '}$outputPath',
    );

Can somebody help me recreate the ffmpeg_kit_flutter_audio so that I can use it as a local package? I don't understand the current instructions clearly 🙏