The Saarland University and State Library (SULB) has published an updated version of its Open Access Factsheet it is available under publikationen.sulb.uni-saarland.de/handle/20.500.11880/31706 and offers on 27 pages information on Open Access at the UdS as well as on requirements stipulated by selected research funding organisations/funding programmes (German Research Foundation DFG, Federal Ministry of Education and Research BMBF, European Commission Horizon 2020, Horizon Europe, European Research Council ERC) on Open Access to texts and research data including information on how to comply with these requirements.
You can find the SULB's Open Access services on the following website: https://www.sulb.uni-saarland.de/service-fuer-die-wissenschaft/open-access-an-der-universitaet-des-saarlandes