Software Heritage, an archive for collecting and preserving source codes. An interview with Roberto Di Cosmo • Roberto Di Cosmo is Director of Software Heritage and a researcher in Computer Science. He leads the research center Innovation and research initiative for free software (Initiative de recherche et innovation sur le logiciel libre, IRILL). Di Cosmo explains the central notions and motivation at the origin of the Software Heritage archive, an initiative supported by UNESCO and INRIA.