There is still stocks of other manufacturers out there, ODROID and Pine64, both of which are supported through Armbian. I assume you can still get some OrangePi and others as well, but the first two seem to be more readily available. There are still stocks of the Pi 400 out there as well.
It's a shame that Adafruit is such a woketard companyy. They've done a lot of the open source community, and their selection of small microcontroller boards is unparalleled. But they seem to be more concerned with a career criminal's death than being a good citizen.
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