Just adds a keybind (default "C") which sets the player to the crawling pose, allowing them to sneak through 1-block high gaps, without needing to squash something on top of them.
Also adds a second keybind (not bound to anything by default) which allows you to toggle being prone.
Has server side config options to allow/deny players going prone in certain scenarios (can be found in <world save>/serverconfig/goprone-server.toml).
Config defaults to:
Requires Forge. (Fabric version here, Maintained by VidTu with my permission)
Needs to be installed on the server (although if it isn't you can still join the server, the mod just won't do anything)!
Not required on the client (Although clients without it will not be able to go prone as they won't have the keybind).
You may use this mod in modpacks and/or videos without asking permission.
Thanks to hairyballbastic for the new logo.