Hi, one of the creators here. We build this because we run our own machines and wanted a easier way to manage our OS user accounts and SSH keys across machines. We put together a beta service to do just that, and would love to hear what you think.
Also, we set up Bastio so that we don't have unattended access to your servers. We keep everything encrypted until the moment when we need the keys for account provisioning or keypair deployment.
Where are your encryption keys stored in relation to our connection data?