Open source & licensing

We’d rather draw this line clearly than have you discover it later. Here is exactly what is free, what is paid, and why.

The engine: MIT, forever

Everything the application does is open source under the MIT license in the public repository: the canvas, the Docker runtime, the network engine, the terminals, the database explorers, every node, the validation engine, the step player, and three complete roadmaps. The engine will not be re-licensed, feature-gated, or moved behind a paywall later.

The roadmap format: open

The roadmap format is documented, versioned JSON. Anyone (individuals, companies, schools) can author, share, or sell roadmaps in this format without our permission.

Premium packs: paid content in the open format

Paid scenario packs are proprietary content: data files written in the same open format the free roadmaps use. Buying a pack gives you a personal, perpetual license to use it. The license does not include redistribution rights. The pack ships without DRM, a license server, or an account; the files are yours to keep and they run in the free app.

Future hosted services

If we ship server-side services (cloud sync, shared results, team dashboards), they will be separate from the engine and may use a different, source-available license. The local engine stays MIT regardless.

Trademark

“Torollo” and the Torollo logo are trademarks. The MIT license covers the code; it doesn’t grant the right to use the name or logo in ways that suggest endorsement.

Questions about any of this: othmane@torollo.app.