I also really liked day 17, because at one point the solution for part 2 just clicked and now it makes so much sense.
I think my favorite was the full adder on day 24. Even though I only solved part 2 manually, it was still a lot of fun to reverse an actual full adder and get familiar with all the required logic gates.
That’s incorrect, Graphene OS has Android Auto support.
I was very disappointed with the (default) Camera after switching to Graphene, luckily you can just download the Pixel Camera (including all the Pixel optimizations) from Play Store on Graphene OS or download it as an APK bundle from some other sites (downloading the normal APK won’t work, it has to be the bundle).
In that case you can try adding before:2023 or similar to your search
For a while I tried tagging my memes (Samsung Gallery lets you make tags and assign as many to any image as you want), but that lasted about two days.
You actually can still use it, there’s some folks on reddit trying their best to keep it going. App support is very poor though.