Modular is committed to an open-source development model for the Mojo programming language and its MAX platform, emphasizing community collaboration by releasing core modules of the Mojo standard library under the Apache 2 license with LLVM exceptions. This approach not only provides legal protection and flexibility in mixing with GPL2 code but also encourages active participation by offering public CI, nightly builds of the Mojo compiler, and transparency through version control history. Modular aims to cultivate an engaged community by allowing external contributions via GitHub pull requests and providing comprehensive contribution guides. The open-source journey is in its early stages, with plans to release more code and continuously improve development and contribution processes based on community feedback. Modular's team, experienced with notable open-source projects, stresses the importance of a vibrant community and openness, inviting developers to contribute and shape Mojo's future.