What is an unfederated single-guardian mint?

Also known as a solomint, an unfederated single-guardian mint configuration is where one individual or entity, the lone guardian, is running only a single fedimint server. 

Solomints are the most straightforward and least expensive option to set up, but they are also the least resilient and secure as they do not benefit from the decentralization advantages of Fedimint.

Rather than custody being distributed across multiple independent parties, trust is instead centralized on a one guardian and their one server – making the mint vulnerable to a single point of failure.

If the guardian's server goes offline for any reason, like malicious behavior or even something as simple as an internet outage, access to funds in the mint is immediately lost until the server is brought back online.