A gazelle is one of many antelope species in the genus Gazella... Gazelles are known as swift animals. - Wikipedia
Gazelle is a lightweight replacement for Ermine.
To run it:
fx set workstation_eng_paused.BOARD --with //src/experiences/session_shells/gazelle fx build ffx session launch fuchsia-pkg://fuchsia.com/gazelle_session#meta/gazelle_session.cm