We now invite proposals for developer rooms for FOSDEM 2025. FOSDEM offers open source and free software developers a place to meet, share ideas and collaborate. Renowned for being highly developer-oriented, the event brings together some 8000+ geeks from all over the world. The twenty-fifth edition will take place Saturday 1st and Sunday 2nd February 2025 in Brussels, Belgium. Developer rooms are assigned to self-organising groups to work together on open source and free software projects, to discuss topics relevant to a broader subset of the community, etc. Most content should take the form of presentations. Proposals involving collaboration across project or domain boundaries are strongly encouraged. Devroom managers must enter a complete schedule into our conference system by 15th December. Developer room proposals should be submitted through the form at https://fosdem.org/devroom which contains further information. Questions or remarks? Contact us at devrooms@fosdem.org. Key dates: 10 October deadline for developer room proposals 21 October accepted developer rooms announced 30 October (or earlier) developer rooms issue Calls for Participation 15 December (or earlier) developer rooms publish complete schedules