Look into radarr and sonarr to handle all the media acquisition.
CmdrShepard
Provided it's available in your location, and still being sold/produced. Furthermore Blurays are only going to be harder to find as time goes on with companies like Best Buy stating that they'll no longer be selling them.
DNS is like a big phone book telling you that navigating to "google.com" = IP address 75.209.123.456, for example. Your ISP can see these requests and add information to them like ads. Using AdGuard DNS encrypts these requests so they can't be modified.
I have a bunch of WD HDDs (9) in my Fractal Design Define R7 case sitting on top of my desk, about 2ft away at ear level, and can barely hear them. If anything the hum of the fans is what I can hear most (though still quiet). I have a security camera NVR with a little 40mm fan 12ft away on top of a high shelf in my office and I can hear it over my server by quite a large margin.
Even if rebuilding it today, I'd go for HDDs as you can't buy 12, 14, 18TB, etc SSDs for a couple hundred bucks and you won't really gain any benefit using SSD over HDD as reading large movie files from a disk isn't going to saturate the drive cache and you won't be dealing with random seeking.
You said you might upgrade all the drives in the future but how (2nd NAS?) and what will you do with the old ones? 4x4TB is going to fill up pretty fast especially when you're first starting out and eager to add new titles.
I'm no fan of Apple, but a lot of their new shows are pretty decent like Silo, Invasion, Slow Horses, Ted Lasso, For All Mankind, Severance, Foundation, etc. I suppose it's all subjective but I think they're worth the HDD space.
I got Seattle and my top artists were primarily in the Retrowave/Synthwave/Vaporwave genres and one rap (Equipto).
My wife got Oslo, Norway and her top artists were Spanish music and the most poppiest of American pop music. Is cumbia a popular genre in Norway?
Curious what's in your top artists? I have The Midnight, Kalax, Timecop1984, and other Retrowave/Synthwave type music and got Seattle, but I live near Portland.
250 songs will get stale pretty damned quickly. Back in the day I had a 4GB iPod Nano and iPod adapter in my car and would very quickly start hearing the same songs over and over. You could always swap out to a new playlist but where are you going to find new content/recommendations without putting in a ton of work?
I have zero issues with piracy and have a gigantic media server full of pirated content but I don't see how you square "company being hostile to artists and revenue sharing" with "I better pirate this music instead"
I subscribe to Spotify because it's convenient as fuck and has 99.9% of the music I want to listen to (and podcasts). Pirating music is a huge pain in the ass these days even with stuff like lidarr and private trackers.
I got Seattle which is great because I already live in the PNW. Apparently I've already found my people. My wife got Oslo, Norway after listening to a bunch of pop and Spanish music.
What type of business is this, say if I was trying to find a similar one in my area?