"envstack" is a trademark of Ryan Galloway and refers to the open-source project and reference implementation maintained by the author.
Use of the name "envstack" does not imply endorsement unless explicitly stated. Forks and derived works should clearly indicate when they are not the official envstack project.
ENVPATH is an environment variable name used by envstack to locate environment
definitions.
ENVPATH is a descriptive identifier and is not claimed as a proprietary or
exclusive mark. Other tools may use similar names or mechanisms without
restriction.