Armin Ronacher on GitHub's decline and open source memory

The Flask creator reflects on what open source loses as developers drift away from GitHub.

Published

Apr 28, 2026

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Overview

• Armin Ronacher argues GitHub is slowly dying and warns that its decline threatens the archival memory of open source software.

• Mitchell Hashimoto announced Ghostty is leaving GitHub, calling it a difficult decision after 18 years on the platform.mitchellh

• GitHub has operated without a dedicated CEO since Thomas Dohmke resigned in 2025, with Microsoft folding it into its CoreAI division.