Got my Yahboom K210 today. This tiny device just changed my bitcoin setup. Flashed @selfcustodykrux on it in about 5 minutes. Now I have a fully air-gapped bitcoin signer for about $45 CAD. Here's why it's awesome: -It's just a generic microcontroller module so ordering it doesn't put you in anyone's sights. -Completely DIY. But no building required; take it out of the box, plug it in, flash it. Done. -100% FOSS. -Feature rich with slick touchscreen. -Stateless or stateful (your choice). This 1 device handles my whole multisig setup (keys generated with multi-vendors). -Handles Miniscript & taproot like a champ. -Works with @BULLBITCOIN_ , @SparrowWallet, @nunchuk_io , @lianabitcoin and so much more. -Air-gapped QR code signing (or use SD card). -Optional thermal printer for paper backups. @BTCsessions did a great video on it last year: