Code commonly flows downstream, from an open-source project into an organization’s own products. Upstreaming is the process of reversing that flow—contributing code back to an open-source project.

Hugging Face is teaming up with ServiceNow to launch BigCode, an effort to develop and release a code-generating AI system akin to OpenAI's Codex.

But each of these projects depend on smaller libraries of open-source code. And those libraries depend on other libraries. The result is a complex, but largely hidden, web of software dependencies.

Open source refers to software or other projects with source code that can be viewed, modified, or upgraded by anyone. Learn about the pros and cons of open source.

To help us all better understand Android, Google has made it possible to browse and search through Android Open Source Project code.