NOTICE - SIGMA LIBRARY

This distribution includes Sigma, (c) ArsChitectura SAS. Governed by the
Sigma License (see LICENSE.txt in this distribution). Includes an
at-will revocation right running directly from ArsChitectura SAS to you,
exercisable by notice delivered per Section 4 of the License (any means
reasonably calculated to apprise you, including email, postal mail,
courier, huissier or process-server service, any direct or indirect
channel, or public announcement on Licensor's organization website or
on the Software's project homepage). Licensee shall consult Licensor's
organization website and the Software's project homepage at least once
every ninety (90) days. Modification of the Software is permitted only
as preparation for a Contribution to the Canonical Repository (see
CONTRIBUTING.md); any other modification is an unauthorized Derivative
Work. Your rights may be terminated at any time by such notice. SPDX:
LicenseRef-ArsChitectura-Sigma.
