What is alt tech?

this year I have heard people talking more about some alternative technologies, alttech or completely different ways to view technology as a whole.

have you heard anything about digital hegemony, about marginalization of analog research and tools, about ways in which some technology that was made by our peers decades ago and is superior in many ways, stays under the rug because of the work of those who shape tech today?

when I hear it I can't unhear, so if you can clarify what you know and heard, it would help me to deal with this