Organizing collective events is an important moment in the life of a hackerspace. The /tmp/lab was happy to organize a new edition of HSF on the 7th and 8th of February 2020. A number of people helped us for HSF2020, we would like to thank all of them in no particular order or exhaustivity : Choisy’s city employees, participant hackers, lab’s members, and of course everyone who came. Speaking of