Hi @datatech451 - glad to hear I am not alone. Yep - I fiddled with SuperCeleron, ATVx and custom launchers a few years back. I have an old pc with LibreElec around here somewhere too. But today I am no longer trying to keep Android going on this one. I moved on to Firesticks since then and the remote control is a big factor on why we stay there. But for the S912 - I am focusing on the mediaserver side and thinking of adding photo backup of my phone. I am just in the tinkering and learning phase. I've had Plex working and have been trialing Jellyfin lately. It works well to stream locally to my firesticks. Big Buck Bunny of course and it seems pretty solid. But I am not doing 4k BBB or anything. But still testing and troubleshooting random issues and craziness. In fact - I put Portainer on board. Jellyfin in a Docker. Homarr in a Docker, Grafana in a Docker, Adguard in a Docker and Cockpit... But lots of things not working exactly right but I think because I overload it. Really trying to push it to the limits just to see and learn.
Burning that all down today and doing a fresh build with just what I need - Jellyfin, Cockpit and Adguard. I'm gonna skip Docker this time and I bet I get it all working well enough to learn the next level.
As for cooling - I bought some extra heat sinks but never made it further. I am a little worried about pulling the existing sink off - don't want to crack the cpu. Feels more solid than thermal paste - more like thermal glue. But yes - seems to get HOT in a hurry when it is busy. This box has a heat sink plus heat tape and a piece of sheet metal. I am betting that is no longer standard build.
BTW - I fiddled with my watt meter and this thing just sips... Seems to idle around 3.6 to 4.1 watts. Did some measurements during 2 hours of streaming, and did some math it seems it would only use about 2.9 kWh per month if on all the time. My spinning HDD uses more than that - could justify that SSD upgrade in the future.
I found another box with a S905 (I think) in my recycle bin - I might look at optimizing that for retro gaming. We will see what happens next. Do you have a favorite gaming ROM or experience?
Anyway - best of luck and keep the faith!