It's fun as hobby, but creating your own Jade (Blockstream's hardware wallet) is more practical. Jade also use similar hardware (on price and physical size), but the source code available for free and thoughtfully tested.
Yes, I think they are using exact same device as Jade wallet, but one problem with Jade code is that some people don't like their pin code connected with their server.Krux would be alternative for that but I would wait few weeks or months for some code audits and reviews.
I'm not very fond of hardware wallets either, but it does the job and is a lot more n00b friendly (until they enter their seed words on a phishing site).
Or until scammers send you modified ''free gift'' fake device, because your address got leaked in one of ledger leaks 