I've been using Loki and promtail for containers I actually care about aggregating logs for. It's something relatively new for me but so far the experience has been positive.
I would second this. A normal tower with a high quality psu and 5 drives is what I use for cheap storage. Obviously more failure prone than true enterprise hardware but a hell of a lot cheaper.
I'll have to try out some ereader apps. I had this thought a few weeks ago but didn't find any free apps in the little bit of looking I did. I'll take a look at those you suggested.
I've been using Loki and promtail for containers I actually care about aggregating logs for. It's something relatively new for me but so far the experience has been positive.