Hi, I am curios if it would be possible to develop kind of middleware for hardware components at least on macOS? The idea is that I would like to be able to have an app for my audio input (e.g., the internal microphone of MacBook but also every other) that can handle the input before it is passed to any other application. Thus it would be possible to apply filters such as noise gate, compression, etc. before other apps like Skype or Facetime or anything else would receive it. In general it would be a great feature of the OS if there would be a supported way to develop such apps for hardware middleware as an OS extension and distributed via the App Store. Of course with managed access to everything via security settings like there already is for every app. As described this would enable a lot of features, in this example filters for audio where it can't be applied yet like it is possible in recording software or similar. This concept could be applied for a lot of hardware, audio input, video input, video output, keyboard (of course as I said with security access management to prevent scamming), and a lot more. So is there already something similar I could use at the moment for developing an audio filter app? Don't want to buy external hardware as middleware and this can't even applied to built in hardware like the built-in micro.