Did I bite off more than I can chew?

[TheDreadPirate]

To start with. The 6202T has a pretty old Intel CPU (Braswell, circa 2014). Transcoding is not an option for this CPU. If your library is encoded for max compatibility, transcoding can be avoided. This means H264 Main profile, 8 bit color, AAC stereo audio, burned in subtitles.

I know its possible for Asustor to run Jellyfin and a reverse proxy (with https), but I'm not aware of beginning to end documentation for Asustor's environment.

If you had an old PC, but newer than 2014, you could use the old PC to run Jellyfin and still use your Asustor for storage.