LICENSE

# Open Source License

Yao App Engine is licensed under a modified version of the Apache License 2.0, with the following additional conditions:

1. Commercial Usage Terms:
   Yao App Engine may be utilized commercially, A commercial license from the producer is required if:

   a. Trademark and Branding Requirements

   - The Yao App Engine console/application logo and copyright information must not be removed or modified
   - Logo and copyright information can only be changed with an authorization certificate issued through Yao Developer Certificate

   b. Authorization Verification Requirements

   - The Yao certificate verification logic, processes, and related pages (marked in code comments) must be preserved
   - The complete Yao certificate verification system must be maintained regardless of usage purpose

2. Contributor Agreement:
   - The producer reserves the right to modify the open-source agreement terms
   - Contributed code may be used for commercial purposes, including cloud business operations

All other rights and restrictions follow the Apache License 2.0 (http://www.apache.org/licenses/LICENSE-2.0).

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