I have recently (co-)organized:

• The annual French Bioinformatics Conference in June 2024 in Toulouse, JOBIM2024, gathering 470 persons on site and 100 on-line
• The “Massive Genomic Data: Statistical and Bioinformatics Advances” INSERM workshop: theoretical phase with 70 people in Bordeaux in September 2024 / practical phase with 23 people in Brest in October 2024