Open source: the code and the build docs
System 6.9 is a community DIY endless shuttle, and everything behind this site is open. You can read it, copy it, change it and build from it.
Not certified. Use at your own risk. System 6.9 is a home build, not a commercial product or a certified tow system. The files come with no warranty. If you build or ride one, you're responsible for it.
What's open
Code: MIT
The site, the Cloudflare Pages Functions, the scripts and the tests are under the MIT License. Use them for anything, as long as you keep the copyright and license notice.
Docs: CC BY 4.0
The build guide, the parts explainer, the build write-ups, the executive summary and its PDF are under CC BY 4.0. Share and adapt them, and credit System 6.9.
Get the files
Everything is in one repo on GitHub: github.com/gnarbot3000/system-6-9-build. The README explains how to run the site on your own computer.
Contribute a build or a fix
Share a build
Submit it on the Builds page, or open an issue on GitHub with photos, your span, motor and rope, and what worked and what didn't.
Send a fix
Found a broken step, a wrong number or a bug? Open an issue, or open a small pull request with one change and a note on how you checked it.
Keep it safe
Don't remove safety notes. If a change touches loads, speeds, rope, anchors or stopping, say so plainly. Never post passwords, keys or other people's personal details.
Not a certified tow system. You build it, you're responsible for it.