A series of events focused on **free and open-source software** will take place in late September and early October 2026 across France, Belgium, and online. These events aim to promote collaboration, knowledge sharing, and the use of open-source tools in various domains, from mapping to digital ethics. They include workshops, training sessions, community meetups, and even Repair Cafés, where people can fix broken items together. In Paris, a gathering for **Vim** users, known as TupperVim, will be held on Monday, September 28, from 6:30 PM to 10:30 PM. Participants will exchange tips and techniques for using this popular text editor. A training session on **Nextcloud**, a platform for collaborative file sharing, will run from Tuesday, September 29, to Wednesday, October 1, from 9:30 AM to 6:00 PM. In Saint-Étienne, Alolise will host an evening support session on Monday, September 28, from 7:00 PM to 10:00 PM. That same day, an OpenStreetMap contributors’ meeting will take place from 7:00 PM to 9:00 PM. In Chaumont, REVOL will offer an information technology support session on Tuesday, September 29, from 9:00 AM to 4:30 PM. In Dijon, an open-source software workshop will be held on the same day from 3:00 PM to 7:00 PM. Online, CartONG will organize a **mapathon** on Monday, September 28, from 6:00 PM to 8:00 PM, focusing on mapping vulnerable areas for humanitarian efforts. Another online event, a beginner’s training session for contributing to Open Food Facts, will take place on Monday, September 28, at 12:30 PM and again on Tuesday, September 29, at 6:00 PM. Other events include Repair Cafés, Linux installation parties, and talks on ethical digital tools. In Montpellier, a Wikipedia contribution workshop will be held on Friday, October 2, from 9:30 AM to 12:00 PM, and a session on alternatives to proprietary software will be on Thursday, October 1, from 5:00 PM to 7:00 PM. In Saint-Herblain, a Repair Café and Install Party will be held on Thursday, October 1, from 2:00 PM to 5:00 PM. Additional events include open-source software meetups in cities like Brest, Amiens, and Béziers, as well as a radio open session in Paris on Friday, October 2, from 7:30 PM to 11:00 PM. A public meeting in Liège and a cybersecurity discussion in Courbevoie are also scheduled. A number of events are planned for the weekend of October 3–4, including the Fête de la Science in Montpellier and a partnership event in Lannion. In Paris, a workshop on using open-source software for phone testing will be held on Saturday, October 3, from 2:00 PM to 5:30 PM, and a public open house in Vanves will take place from 9:30 AM to 6:00 PM.