{"type":"rich","version":"1.0","author_name":"Silberengel (npub1l5…egx9z)","author_url":"https://nostr.ae/npub1l5sga6xg72phsz5422ykujprejwud075ggrr3z2hwyrfgr7eylqstegx9z","provider_name":"njump","provider_url":"https://nostr.ae","html":"I know a German guy selling DIY hardware wallets with exchangeable cards. The keys are on the card, so you can switch out the cards and use one appliance for different people. I think. 🤔\n\nThe CEO stayed with us in Prague. nostr:npub1qmfywacdlsss32lzup3qvutzdr7q6xttun4le0a9uzns4vfstk2q52jnen\n\nhttps://clavastack.com/products/specter-diy-snapcase"}