Amazon’s Fire OS is android but they’ve announced a new webOS ripoff, VegaOS, Linux running HTML5/react apps. Normally I’d think this kind of diversity is a good thing, but apparently it’s locked down even tighter and side loading into Vega OS just isn’t a thing at all.

Edit: the point I was trying to make is that some vendors are working to get away from Google’s Android foundations completely. I would think that graphene could go that route if the rug was pulled. But good luck with device support when the device specific source isn’t released.

There were lots of 486 & Pentiums equipped with CDROM drives, ATX & software power didn’t really become a thing until 686/Pentium II machines came out. My first ‘ATX’ machine was in a baby AT case - An Amd K6-2/450 on an MSI super socket 7 motherboard. It was an upgrade from a Pentium 166MMX, and I had to use the reset button as a power button. The original (actual on/off, not pushbutton) power switch left with the AT power supply.