family member slid in my DMs asking for advice about where he should store his CRYPTO gainz. He's apparently worried that Coinbase might rug him.. so obviously I'm trying to dissuade him from holding that junk and self-custodying Bitcoin. What's a good article or video I can leave him with to all that off with? nostr:nprofile1qqsp9n7za3drnguaqtujram7wqwmc96mv2rlytwlqfr67wtsd9nlrkgpz4mhxue69uhkummnw3ezummcw3ezuer9wchsz8thwden5te0dehhxarj9e3xjarrda5kuetj9eek7cmfv9kz74e5xxx help!