BetterWarp is free software under the GNU GPL v3, provided as is, without warranty. It is a fork of PenguinMod, TurboWarp and Scratch; see the credits.
Collaboration rooms are run by whoever operates the server you connect to. Only share room links and passwords with people you trust: anyone in a room can edit the shared project and load project files (including custom extensions) into other members' editors.
Use of PenguinMod services from inside BetterWarp (for example loading a project by ID) is subject to PenguinMod's terms.