Open Source

## The Licence Is the Agreement Every open source project is, at its core, a legal instrument. The licence defines what others can do with the code — and what they can't. --- ## Licence Families **Permissive** — MIT, Apache 2.0, BSD. Use freely, attribution required, no copyleft obligations. **Copyleft (weak)** — LGPL, MPL. Some copyleft obligations, but allows proprietary linking. **Copyleft (strong)** — GPL, AGPL. All derivative works must be open source. AGPL extends this to network use. **Source-available** — Commons Clause, BSL. Not technically open source; commercial restrictions apply. --- ## Governance & Sustainability Beyond licences, we examine how open source projects are structured, funded, and governed. Who controls the roadmap? What happens when a maintainer disappears? These questions matter more as open source becomes critical infrastructure. ← [Back to Contracts](/contracts/)