What is a DIY Bitcoin signing device?
nostr:nprofile1qqs9kr5d5m7lhfnrqwrfpvmay9kcx3dxy0xr8cg34lg0ww8dw7ftc4qprpmhxue69uhkv6tvw3jhytnwdaehgu3wwa5kuef0qyghwumn8ghj7mn0wd68ytnhd9hx2tc4xpts5 explain why it matters to build your own and share his thoughts on BULL Wallet and nostr:nprofile1qqs09jtvjlmyrxjn37zv70a89csegcz7rpyqjmnw29cveedhv7vagqqpp3mhxue69uhkyunz9e5k7qg4waehxw309ajkgetw9ehx7um5wghxcctwvs4hl7w6
