10.17192/bfdm.2022.1.8368 Bach, Felix Felix Bach 0000-0002-5035-7978 Klar, Jochen Jochen Klar 0000-0002-5883-4273 Loewe, Axel Axel Loewe 0000-0002-2487-4744 Sánchez, Jorge Jorge Sánchez 0000-0002-0824-2691 Seemann, Gunnar Gunnar Seemann 0000-0001-7111-7992 Huang, Yung-Lin Yung-Lin Huang 0000-0003-4307-3907 Ulrich, Robert Robert Ulrich 0000-0001-9063-2703 The openCARP CDE Concept for and implementation of a sustainable collaborativedevelopment environment for research software Bausteine Forschungsdatenmanagement : 2022, 1 Philipps-Universität Marburg 2022 software development Git CDE RSE software publication CI GitLab AG Forschungsdaten 2022-03-15 2022-03-14 de JournalArticle https://journals.uni-marburg.de/0008/2022/297/8368 urn:nbn:de:hebis:04-0008-2022-297-83688 https://journals.uni-marburg.de/0008/2022/297/8368/8368.png 2626-7489 application/pdf http://creativecommons.org/licenses/by/4.0 This work describes the setup of an advanced technical infrastructure for collaborative software development (CDE) in large, distributed projects based on GitLab. We present its customization and extension, additional features and processes like code review, continuous automated testing, DevOps practices, and sustainable life-cycle management including long-term preservation and citable publishing of software releases along with relevant metadata. The environment is currently used for developing the open cardiac simulation software openCARP and an evaluation showcases its capability and utility for collaboration and coordination of sizeable heterogeneous teams. As such, it could be a suitable and sustainable infrastructure solution for a wide range of research software projects. 2626-7489 Bausteine Forschungsdatenmanagement 2022, 1