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Grant
Theme fund: NGI0 Commons Fund
Start: 2026-04

Upstreaming Sailfish OS ConnMan improvements

Consolidation of improvements to ConnMan connection manager

ConnMan is a core Linux networking component used in mobile, embedded, and desktop systems. Sailfish OS has maintained a fork with over a decade of production-tested improvements — including multiuser support, firewall integration, CLAT (IPv4-over-IPv6), conf.d configuration, and improved DNS handling with systemd-resolved — many of which are not yet upstream. This project focuses on upstreaming these Sailfish OS features to reduce fragmentation, improve security and privacy, and increase interoperability across Linux platforms. By integrating these enhancements into the main ConnMan project, they will become available and sustainably maintained for the wider open-source ecosystem, benefiting both existing ConnMan users and future privacy-preserving mobile systems.

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This project was funded through the NGI0 Commons Fund, a fund established by NLnet with financial support from the European Commission's Next Generation Internet programme, under the aegis of DG Communications Networks, Content and Technology under grant agreement No 101135429. Additional funding is made available by the Swiss State Secretariat for Education, Research and Innovation (SERI).