Gentoo Ditches GitHub for Codeberg as Microsoft Pushes Copilot on Open Source Projects

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The Linux distribution Gentoo has begun its official migration from Microsoft-owned GitHub to Codeberg, a non-profit alternative based in Berlin. The move follows mounting frustration over continuous attempts to force GitHub Copilot usage and concerns about training AI models on open source code. Contributions are now being accepted on Codeberg as Gentoo takes a stand against AI tool concerns in the development community.

Gentoo GitHub Migration Underway Amid AI Tool Concerns

Gentoo has officially started migrating code repositories away from Microsoft-owned GitHub to Codeberg, fulfilling a pledge announced in its 2025 end-of-year review

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. The Linux distribution cited "continuous attempts to force Copilot usage for our repositories" as the primary driver behind the move

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. On February 16, Gentoo announced that it now has a presence on Codeberg and is accepting contributions through the new platform, marking a significant shift in how the venerable open source project manages its development workflow

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Source: PC Gamer

Source: PC Gamer

The decision reflects growing tensions between open source communities and Microsoft's aggressive push to integrate GitHub Copilot across its platform. Gentoo's frustration centers on the difficulty of avoiding Copilot on GitHub and broader concerns about training AI models using repository content without explicit consent

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. Microsoft acquired GitHub in 2018 and has since leveraged its ownership to feed its hunger for training data, using public repositories to train large language models and persistently encouraging users to adopt its GitHub Copilot assistant

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Source: The Register

Source: The Register

Copyright and Quality Drive Policy Against AI-Generated Contributions

Gentoo established a firm stance against AI-generated contributions in 2024, publishing a policy that explicitly forbids contributing any content created with the assistance of Natural Language Processing artificial intelligence tools

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. The ban was implemented on grounds of copyright, quality, and ethical concerns, reflecting the project's commitment to maintaining code integrity and respecting intellectual property boundaries. This policy prohibits both Copilot assistance during development and AI-powered code reviews, setting a clear boundary that Microsoft's platform increasingly makes difficult to maintain.

The impact of AI on open source development has become increasingly contentious, with repositories at risk of being filled with what developers call "AI slop" — low-quality, AI-generated code that creates operational challenges for maintainers

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. Open source advocate Jeff Geerling observed that "AI slop generation is getting easier, but it's not getting smarter," noting that code generation models have hit a plateau where quality improvements have stalled compared to previous years

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. GitHub itself acknowledged these challenges earlier this year, discussing "the increasing volume of low-quality contributions that is creating significant operational challenges for maintainers" and even adding a setting to turn off pull requests entirely

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Codeberg Offers Privacy-Focused Alternative for Data Privacy

Codeberg provides a fundamentally different hosting environment compared to GitHub. The platform is based on Forgejo, maintained by a non-profit organization, and operates from Berlin, Germany

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. This structure offers data privacy protections and freedom from corporate pressures that have characterized Microsoft's management of GitHub. For Gentoo, Codeberg represents not just a technical alternative but a philosophical alignment with open source values that prioritize community control over commercial interests.

The migration process is gradual but deliberate. Gentoo confirmed that contributions can now be submitted to the repository mirror at codeberg.org/gentoo/gentoo, with additional git repositories expected to become available under the Codeberg Gentoo organization over time

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. Importantly, Gentoo emphasized that it "continues to host its own primary git, bugs, etc infrastructure and has no plans to change that" — the migration affects mirror repositories used for convenience and contribution, not the project's core infrastructure

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What This Means for Open Source and Migrating Code Repositories

Gentoo's departure from GitHub signals a potential turning point in how open source projects evaluate hosting platforms. As a well-respected Linux distribution with a sizeable community — and the basis for ChromiumOS from which Google's ChromeOS was derived — Gentoo's decision carries weight

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. Other projects watching this migration will be evaluating whether similar moves make sense for their communities, particularly those with strong positions on AI training and code ownership.

The short-term implications involve navigating a transitional period where GitHub remains active while Codeberg infrastructure scales up. Developers will need to adjust workflows and contribution processes as repositories shift platforms. Long-term, this move could catalyze a broader exodus if Microsoft continues pushing Copilot integration without adequate opt-out mechanisms. Watch for how other major open source projects respond, whether GitHub modifies its approach to address these concerns, and whether Codeberg's infrastructure can handle increased demand from projects following Gentoo's lead. The Register contacted GitHub for comment on the migration but had not received a response

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