First NAS Setup: Best 4-Bay Synology for Jellyfin

[elephantLYFE]

1) Cant say, you just have to shop around, do some research on the product lines. Estimate your needs from a NAS.
(I do think it has to be a '+' model? the processor has to be able to handle certain transcoding? and capable of docker support?)
2) Again, estimate how much you want to grow, and # of bays can affect this decision, models have limits as well.
3) If they data is important, and you can afford it, yes always backup. easy rule 3-2-1, 3 copies, 2 different mediums, 1 offsite.
  Raid is not a backup, its for high availability. (yes Im guilty of running raid mirror, if one drive dies, statistically the other will die soon)
4) Plenty of good guides out there, ARR apps & VPN are separate conversations.
Jellyfin Official Documentation - https://jellyfin.org/docs/general/instal.../synology/
  3rd party site with setup guide - https://mariushosting.com/how-to-install...ology-nas/

My post signature has details about my own personal Synology setup.