## 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

[mitchellh](https://mitchellh.com/writing/ghostty-leaving-github)\ 
Ghostty Is Leaving GitHub - Mitchell Hashimoto

[theverge](https://www.theverge.com/news/757461/microsoft-github-thomas-dohmke-resignation-coreai-team-transition)\ 
GitHub just got less independent at Microsoft after CEO resignation

[reuters](https://www.reuters.com/sustainability/boards-policy-regulation/github-ceo-thomas-dohmke-step-down-plans-new-startup-2025-08-11/)\ 
GitHub CEO Thomas Dohmke to step down, plans new startup

[fragmentedpodcast](https://fragmentedpodcast.com/episodes/310/)\ 
310 - Mitchell Hashimoto on Ghostty & His Agentic Coding Workflow

## 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](https://mitchellh.com/writing/ghostty-leaving-github)

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