They outline it pretty well here:

https://annas-blog.org/how-to-run-a-shadow-library.html

https://simplelogin.io/docs/custom-domain/add-domain/

Similar vein, “Dave’s Old Porn”. I’ve found seeds for a few episodes, but never have tracked down the full set.

I’m not OP but I was curious and went looking.

I think this is it: https://librex.devol.it/

I’ve recoded a bunch of x264 to AV1 and routinely gotten file sizes that are 10-15% of the original file size (a little more than 1/10th the original size)

What I’ve found is that source content often has a lot of key frames. By dropping key frames down to one per 300 or one per 150 frames (one per 10 or 5 seconds for 30fps) and at scene changes, you can save a LOT of space with no loss of quality. You do give up the ability to skip to an arbitrary point in the content, however. You may have to wait a few seconds for rendering to display if you scroll to an arbitrary point in the content.

If you’re just watching the content straight through, no issues. I set CRF to achieve 96 VMAF and I can’t tell any difference in quality between the content with that setup.

I had one corpus of content that I reduced from 1.3 TB down to 250 GB after conversion.

Unfortunately, only the most recent TVs have AV1 playback built in, and the current Fire sticks, Chromecast don’t have support for playback from a LAN source. I’m hoping the next crop of Chromecast and similar devices get full support, I’m assuming it’s just a matter of time until AV1 decoding is included in every hardware decoder since it’s royalyy-free.

AV1 is the shit. Still doesn’t have broad support on consumer devices yet, but it will come.