endurain/TRADEMARK.md

Endurain Trademark Policy

Last updated: 03/12/2025

"Endurain" (the Word Mark) is a registered trademark of João Vitória Silva (the Owner). This word mark is registered with the European Union Intellectual Property Office (EUIPO).
The mark should be referred to as Endurain®.

The Endurain logo and related visual identity elements (the Logos) are original design works owned by João Vitória Silva and protected by copyright and design rights, but they are not yet registered as separate trademarks.

This policy explains when and how you may use the Endurain name and Logos.
It exists alongside the software’s license (AGPLv3). The AGPLv3 covers the code; this policy covers the branding.

1. Philosophy

Endurain is open source and encourages self-hosting.
I want individuals, communities, and non-profits to freely use the Endurain® name and logo for non-commercial purposes.
At the same time, I reserve the right to control commercial use of the brand.

2. Permitted Use Without Permission

You may use the Endurain® name and Logos in the following cases:

• Personal self-hosting — running Endurain for yourself, friends, or family.
• Community or club hosting — for sports clubs, local groups, or other non-profit efforts.
• Educational use — teaching, research, or academic projects.
• Open-source contributions — forks, test deployments, and integrations, as long as they are not sold.
• Nominative references — talking about, writing about, or demonstrating Endurain truthfully.

These uses may retain the name Endurain® and the official Logos.

Rules for non-commercial use:

• Do not imply that your use is officially sponsored or endorsed by the Endurain project.
• Do not alter the Logos except for reasonable resizing or adapting to backgrounds.
• Always comply with the AGPLv3 license for the code.
• Make it clear if your instance or fork is not the official Endurain service.

3. Uses That Require Permission

The following uses of the Endurain® name or Logos require prior written permission from the Owner:

• Offering paid hosting, SaaS, or commercial cloud services under the Endurain name.
• Selling products or services that prominently use the Endurain name or Logos.
• Using the Endurain name in a company name, brand, or product line.
• Marketing commercial support, consulting, or training under the Endurain name.
• Registering domains or social media handles that imply official status (e.g., enduraincloud.com, @endurainapp).
• Producing merchandise (shirts, stickers, etc.) with the Endurain name or Logos for sale.

For permission requests, contact: joao@endurain.com.

4. Forks and Distributions

I welcome forks and distributions under the AGPLv3 license.
If your fork is non-commercial, you may keep the Endurain® name and Logos, provided you:

• Clearly state that it is not the official Endurain project.
• Identify it as “a fork of Endurain” or “based on Endurain.”
• Do not present yourself as an official maintainer or partner.

If your fork is commercial (offering paid hosting, subscriptions, or products), you must rename it and remove the Logos unless you have written permission.

5. Packages, Domains, and Namespaces

• Package registries (npm, PyPI, Docker, etc.): Non-commercial packages may use “Endurain” in the name.
  Commercial or paid offerings may not without permission.
• Domains and handles: Avoid names that could be mistaken for the official project unless approved.

6. Prohibited Uses

The Endurain® name and Logos may never be used:

• In any misleading way that implies endorsement or partnership.
• In connection with illegal activities, malware, or harmful content.
• To promote or brand competing software as “Endurain” without permission.
• To sell any service or product under the Endurain name without authorization.

7. License vs. Trademark

The AGPLv3 license gives you broad rights to use, modify, and distribute the code, including commercially.
This trademark policy only limits how you use the name and branding.

You are free to offer commercial services based on the Endurain code — but you must not market them under the Endurain name or Logos unless permitted.

8. Attribution

When referring to Endurain in permitted use, include the following notice:

"Endurain® is a registered trademark of João Vitória Silva."

9. Reporting Misuse

If you believe the Endurain trademark or branding is being misused, please contact: joao@endurain.com.

10. Changes

This policy may be updated periodically. Any changes will be documented in this file.