Server plugin for the Busy Bodies mod: on Paper servers, players with the Fabric or NeoForge mod see each other typing, in menus and asleep. No mods needed on the server.
See what other players are up to: typing, rummaging through a chest, stuck in a menu or dozing off, shown with body language and small live copies of their open screens.
The ambience Minecraft was missing: real birdsong, ambient wildlife, fireflies, footprints, rain ripples and grass that bends. 100 small effects, each with its own switch. Client-side.