Looking for a solution to manage and access the directory on my NAS that is full of ebooks. Optimally I want to be able to web reader them but also automagically send it to the email that sends it to my kindle. And e-book wise, the majority of mine are epub/mobi that I got from various kickstarters or humble bundles. But I also have some RPG books (so PDF with a LOT of pictures) and manga (PDF or CBR).

Did some research and checked the various reference lists. Mostly narrowed it down to

• Weird-ass Calibre running in Kasm and accessed through a god awful web UI: This is actually what I used for the past year or two because there was a solution that was fairly plug and play with unraid. I... would rather never do this again
• "Calibre Web" https://github.com/janeczku/calibre-web. This seems to be what I actually want (an actual web interface to Calibre!) but it looks like the lead dev lost their shit with obnoxious demands from users. And while I appreciate they are still supporting it, "I am going to ignore the issues unless I feel like it" seems like a good way to get a bunch of unacknowledged CVEs...
• Kavita https://www.kavitareader.com. Only found out about this today but it looks clean and efficient (plex-like). REALLY not a fan of the subscription model already being there but I also don't want any of those features.

Thoughts? There anything better I am missing because none of these look all that great?