TY - CONF AU - Carceller, Juan Miguel AU - Deconinck, Wouter AU - Madlener, Thomas AU - Sailer, André TI - Building the Key4hep Software Stack with Spack JO - The European physical journal / Web of Conferences VL - 337 SN - 2100-014X CY - Les Ulis PB - EDP Sciences M1 - PUBDB-2025-05597 SP - 01146 - PY - 2025 AB - The Key4hep software stack enables studies for future collider projects. It provides a full software suite for doing event generation, detector simulation as well as reconstruction and analysis. In the Key4hep stack, over 600 packages are built using the Spack package manager and deployed via the cvmfs software distribution system. In this contribution, we explain the current setup for building nightly builds and stable releases that are made every few months or as needed. These builds are made available to users, who have access to a full and consistent software stack via a simple setup script. Different operating systems and compilers are supported and some utilities are provided to make development on top of the Key4hep builds easier. Both the benefits of the community-driven approach followed in Spack and the issues found along the way are discussed. T2 - 27th International Conference on Computing in High Energy and Nuclear Physics CY - 19 Oct 2024 - 25 Oct 2024, Krakwo (Poland) Y2 - 19 Oct 2024 - 25 Oct 2024 M2 - Krakwo, Poland LB - PUB:(DE-HGF)16 ; PUB:(DE-HGF)8 DO - DOI:10.1051/epjconf/202533701146 UR - https://bib-pubdb1.desy.de/record/642748 ER -