'Stubby' is the name given to a mode of using getdns which enables it to act as a local DNS Privacy stub resolver (using DNS-over-TLS). Stubby encrypts DNS queries sent from a client machine (desktop or laptop) to a DNS Privacy resolver increasing end user privacy.
Stubby is in the early stages of development but is suitable for technical/advanced users. A more generally user-friendly version is on the way!
Since Stubby is part of the getdns project - the reference page for how to get up and running with Stubby has moved to the getdns website: