Why would I use Bitkey when I could just make 5 DIY Blockstream Jade devices for the same price, running on one of the most popular chips (esp32) with ease and has a non-complex codebase? Works fully with any popular wallets and the Blockstream services.

It's nice that Bitkey open sourced all the software, but until there's a major support for a DIY device where you can source hardware easily and anywhere in the world.