Two factors, quality and heat. If you buy bad quality they will last a short time. If the fixture is not designed to dissipate heat it will last less time. I found out the last one for a couple of mine. The ceiling lights with a shade kinda of a bowl like. The LEDs ones lasted less than a year. Then one of them I didn’t find the nut for it and put some other one that didn’t fit quite well but let the air flow and that one outlasted the other ones. Yes heat will kill your LEDs.
Foundation by Isaac Asimov for the sixth time. After watching the series. It’s science fiction. One of my favorite books. The concept of psycohistory is so interesting, civilization following certain paths.
Haven’t tried it, since I only sync with my PC and cloud server. But I just checked up and Librera has an option to save progress and profiles to a custom directory, so I guess that would be the way.