Corkboard

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Last updated: 2026-11-14

1. Scope

These terms cover the Corkboard website (corkboard.sectl.cn, "the site") and the Corkboard application ("the application"). They are licensed separately — see sections 2 and 3.

2. The application: GPLv3

The application is released under the GNU General Public License v3.0. The source is at https://github.com/SECTL/Corkboard.

You may run, study, modify and redistribute it. If you redistribute it, keep the GPLv3 licence, make the corresponding source available and keep the original copyright notices. The licence text linked above is authoritative; this page does not restate it.

The application comes with no warranty, including merchantability or fitness for a particular purpose. To the extent permitted by applicable law, you use it at your own risk.

3. This site: closed source, all rights reserved

  • The source of this site is closed; it is not an open-source project and is not published on GitHub.
  • The copy, images, interface screenshots and visual design of this site belong to SECTL, with all rights reserved. Do not republish them wholesale, mirror them or use them commercially without written permission. When quoting, credit the source and link back to this page.
  • Linking to any page here is always fine and needs no permission.

4. Trademarks

The names and marks "Corkboard" and "SECTL" belong to SECTL. You may use them to refer to the application and the organisation (for example, when writing about Corkboard), but not in a way that suggests SECTL endorses your product, service or group.

5. Downloads and updates

  • Official installers and portable packages are published only at https://github.com/SECTL/Corkboard/releases, which is exactly the list the download page reads.
  • Automatic updates accept only packages validated against a signed manifest. Download from the official channel above; we cannot vouch for packages obtained elsewhere.
  • The packages are not signed with a trusted code-signing certificate yet, so Windows SmartScreen may warn about an unknown publisher. That is a known limitation, not an error.

6. The control service

  • Control (sectl.cn/dashboard/control) is operated by SECTL and may be interrupted for maintenance, changed, or retired. We will try to give notice in the console or in the repository.
  • Keep location IDs, pairing codes and credentials to yourself; do not post them publicly. If a pairing code leaks, generate a new one.
  • Control is for ordinary teaching and administration. Using it to push unlawful, infringing or harassing content, or to reach devices you are not authorised to pair, is prohibited.

7. Disclaimer

The site and the application are provided "as is". We try to keep the documentation accurate, but we cannot guarantee that every description here matches every version on every platform; the application's actual behaviour and the code in the repository take precedence. Your assignments and exam boards are teaching data — please keep your own backups.

8. Changes to these terms

When these terms change, the "last updated" date above changes with them. Material changes to the scope of rights are also noted in the application's release notes. Continuing to use the site or the application after a change means you accept the updated terms.

9. Language

This site is published in Chinese and English. If the two versions of these terms differ, the Chinese version prevails.