GitHub still adds a user every second and hosts over 600 million repositories, but a visible trickle of high-profile projects has begun leaving. Ghostty, the cross-platform terminal emulator maintained by Mitchell Hashimoto, announced its departure in April 2026. Zig, the systems language created by Andrew Kelley, followed in November 2025, along with Tenacity, Dillo, and the Hare language. Maintainers cite three drivers: reliability, politics, and AI. Incident Hub recorded 112 hours of downtime across 48 major outages between May 2025 and May 2026. Kelley referenced GitHub's $200k contract with ICE, while CEO Thomas Dohmke's declaration — "Either you embrace AI, or get out of this career" — alienated developers wary of Copilot's deepening integration.

Alternatives are maturing rapidly. Codeberg, built on Forgejo (a Gitea fork), offers issue tracking, CI/CD, and static hosting with a nonprofit governance model. Sourcehut provides an email-centric workflow and fully open-source tooling. GitLab and Gitea remain popular for self-hosting, while the Software Freedom Conservancy publishes migration guides. Projects like GNOME, Apache, and the GNU Project never adopted GitHub, citing its reliance on non-free JavaScript and permissive licensing defaults.

The exodus remains small relative to GitHub's scale, but it signals a fracture in the monoculture. Teams prioritizing uptime guarantees, data sovereignty, or ideological alignment now have production-ready options that match core workflows without vendor lock-in.