It's an app. It's an app that will run on somebody else's platform. Putting that in a ring has so marginal benefits (you can't find a phone or computer or notepad or... to record ideas and do it better) and has so many limitations. It's a non-starter.

I like to think in future there migh be Harry Tuttle like appliance repair vigilantes that come out and remove all this crap from home appliances. :-)

At the same time Steinberg also open sourced their ASIO audio hardware interface standard but under GPL3. GPL2 here would have made more sense to me to align with the Linux kernel GPL2 only licensing. So why GPL3? Other commenters here have mentioned OBS, and OBS is "GPLv2 or later" so sure that works for them. Not being GPL 2 and missing on the Linux kernel just surprises me.

I have been using the nice cwASIO (https://github.com/s13n/cwASIO) re-implementation of the ASIO SDK, it's MIT licensed. https://github.com/s13n/cwASIO. It's nice there just to see something more up to date than the ancient ASIO SDK documentation. I would love to see the Steinberg ASIO SDK updated and improved, if you are listening Steinberg folks: nobody cares about the history of ASIO on Macs or Silicon Graphics Workstations, just dive in and get deep into the weeds of ASIO on Windows, and include lots more sample code, especially covering the ASIO device enumeration mess on Windows.