Show HN: I'm building Eigen, a self-hosted Google Workspace alternative

Category: devtools

Tags: self-hosted, productivity-suite, real-time-collaboration, data-sovereignty

Score: 7.3/10 (Innovation: 7, Technical: 8, Documentation: 4, Utility: 7)

Eigen is a comprehensive, self-hosted alternative to Google Workspace that includes mail, drive, docs, calendar, spreadsheets, slides, chat, and kanban boards with real-time collaboration. It's interesting because it uses a novel per-user SQLite database architecture with file-based storage and Yjs for collaboration, aiming for European data sovereignty and user ownership. The project demonstrates ambitious technical integration of multiple productivity applications into a unified, self-hosted platform.

Target audience: devops, backend devs, organizations seeking data control

Repository: https://reindernijhoff.net/2026/04/eigen-six-months-later/

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