Pi-hole is one of my favorite pieces of software. It is the reason I began self-hosting six years ago.

Unfortunately I can’t play around with it anymore because I live a thousand miles away from everyone I support who actually uses Jellyfin. My experience with the Android TV app was embedded SRT subtitle support is now 100% good as of late last year, but embedded PGS trips things up so much that I cannot use them.

Sublime never offered lifetime subscriptions. https://web.archive.org/web/20150928064400/http://www.sublimetext.com/sales_faq You can even see as far back as 2014 that if you purchased Sublime Text 2 when Sublime 3 was still in beta:

• Upgrade Policy
  A license is valid for Sublime Text 3, and includes all point updates, as well as access to prior versions (e.g., Sublime Text 2). Future major versions, such as Sublime Text 4, will be a paid upgrade.
• Expiration Date
  Licenses purchased for Sublime Text 3 do not expire, however an upgrade fee will be required for Sublime Text 4.

You can find that disagreeable, but it was not something they hid from us customers.

I don’t use it for myself but my experience with Jellyfin is the subtitles UX kind of sucks. It got a lot better on the Android TV app recently (ty to the maintainer!), particularly with improved subtitle support, but because of ExoPlayer it still can’t play bitmapped embedded subtitles easily, only .srt subtitles.

The experience on iOS/appletv with Jellyfin/Swiftfin was so bad that I ended up recommending Infuse. Infuse is a great app, but it’s not a libre app, which kind of clashes with the rest of Jellyfin in that regard. And, once again, it needs massaging: unless you want to be popped up with a buy Infuse Pro pop-up your video and audio has to be in certain codecs.

As I said, I don’t use these things, myself. I don’t even have a TV. But every now and again, I will put a file up for some relatives, and I want it to be totally directly playable, because my server is just an old laptop. So I have to spend a lot of manual time making sure the files are juuuuust right. If there comes a day where there’s direct playback with embedded PGS or SRT subtitles on all platforms that will be the day the Jellyfin suite of software becomes 10/10 software for me.