[iron2disulfide]

Related to this, are there any open source audio interfaces, something that can replace a Focusrite 2i2?

[PaulDavisThe1st]

Basically, no.

[CharlesW]

But maybe this is interesting for people who would like to change that?

"Open Hardware Multichannel Sound Interface for Hearing Aid Research on BeagleBone Black with openMHA: Cape4all" - http://www.openmha.org/docs/LAC2018cape4all.pdf