This week mine was homemade soda. Fermented sodas, citric acid + bicarbonate sodas, different juices and flavors like lime + lemon + cherry and pomegranate or mango peach or cola (homemade knock off)
It is possible to make your own! You can use an old tablet, or even better a raspberry pi and touch screen. Then you add a hat with a better dac and send the audio to an amp. It’s really cool, but I’m pretty sure just buying an actual aftermarket unit will get me a better unit for less money and much less work…
Those are a massive security problem if you connect them to the internet though because they never get updated and we tend to use them for much longer than any phone.
True, I was never going to do that though so it didn’t matter for me. I just want a receiver for Android Auto and my phone will do all the connecting and thinking.