We at Nitrokey develop firmware in Rust and are looking for (also newbie) developers. You are welcome to send your application.
9 karma · joined September 7, 2015
The Nitrokey HSM supports encrypted backups of keys.
Also Secalot seems to be a small project while Nitrokey is a (small) company, which might influence quality of security and maintenance too.
Disclaimer: I'm with Nitrokey UG.
1) We are changing our warehouse process, adding a technical QA step, so that such mistakes won't happen anymore. Sorry for the trouble.
2) As you noticed, the former U2F is going to be replaced by a new FIDO U2F device which contains a full USB plug for better reliability, is more durable and has a touch button.