In this episode, we compare common hardware wallets with SeedSigner, a DIY bitcoin hardware wallet. We explore the reasons behind building SeedSigner, the process of securely generating seeds, and the considerations for holding a private key on hot devices like an iPhone or cold devices like a Trezor, Ledger, or Coldcard. We also discuss the evolution of bitcoin custody over the last decade, the risks associated with using common hardware like Raspberry Pi, and the advantages of multisig versus singlesig setups. SUPPORT THE PODCAST: → Subscribe → Leave a review → Share the show out with your friends and family → Send us an email [email protected] TIMESTAMPS: 00:00:00 Intro 00:01:25 What is SeedSigner? 00:02:05 Why build SeedSigner? 00:05:44 Holding a private key on an iPhone? 00:06:33 Building a SeedSigner device 00:08:16 Why call it a “signing device?” 00:10:45 Generating seeds securely 00:12:33 Good security vs extreme paranoia 00:17:05 How has bitcoin custody evolved over the last 10 years? 00:25:42 How to securely buy hardware? 00:30:45 Are there risks to using a raspberry pi for bitcoin private keys? 00:32:58 Multisig vs singlesig 00:39:10 DIY multisig vs collaborative custody multisig 00:40:53 Using different hardware devices for different seeds 00:44:54 Future of bitcoin custody in 10-20 years 00:50:00 New SeedSigner features? 00:52:41 New to multisig and using SeedSigner? 00:56:30 Closing thoughts WHERE TO FOLLOW US: → Unchained Twitter: https://twitter.com/unchainedcom → Unchained Linkedin: https://www.linkedin.com/company/unchainedcom  → Unchained Newsletter: https://unchained.com/newsletter  → Joe Burnett’s Twitter: https://twitter.com/IIICapital → SeedSigner’s Twitter: https://twitter.com/SeedSigner