Mix Border wallet, with NFC tag, with hardware wallet, with a paper wallet, to get your multi sig. Everyone seems to be of the opinion that tech breaks or becomes obsolete. But no one seems to think that having analogue backups can be a part of your main security model. Very odd, imo.
I believe it was one of the online paper wallet generators that changed hands years back.
Yeah, if it's a single sig it's one point of failure. Multisig with borderwallet or paper analogue back ups is my advocacy. But, in this particular case smaller tramsaction size and open scource vetting or compliling the code yourself is really your only option. Brutal cautionary tale.