Looking for a thunderbolt solution to LTO-8 drive. Also down to do a DIY solution if it’s cheaper.

The plan is to hook it up to my M1 Ultra Mac studio to backup my Synology NAS to tape to keep offsite. Maybe put tapes in a a couple layers of vacuum sealer bags if that’s a safe thing to do. Is a dark closet a safe place to store tapes if they’re vacuum sealed?

I’m going into this blind so ofc please correct me anywhere where i’m wrong, I’d love to learn the right way to archive to tape.