The paper presents a journey, which starts from various social sciences and humanities (SSH) Research Infrastructures in Europe and arrives at the comprehensive "ecosystem of infrastructures", namely the European Open Science Cloud (EOSC). We will highlight how the SSH Open Science infrastructures contribute to the goal of establishing the EOSC. First, through the example of OPERAS, the European Research Infrastructure for Open Scholarly Communication in the SSH, to see how its services are conceived to be part of the EOSC and to address the communities' needs. The next two sections highlight collaboration practices between partners in Europe to build the SSH component of the EOSC and a SSH discovery platform, as a service of OPERAS and the EOSC. The last two sections will focus on an implementation network dedicated to SSH data fairification.

The conference proceedings have been previously published on the website of LREC (https://lrec2020.lrec-conf.org/media/proceedings/Workshops/Books/LR4SSHOCbook.pdf) as well as harvested and indexed via ACL Anthology (https://www.aclweb.org/anthology/volumes/2020.lr4sshoc-1/). Details about the "LR4SSHOC: LREC2020 workshop about Language Resources for the SSH Cloud" can be found here: https://www.clarin.eu/LR4SSHOC. ........ The paper was written as part of the TRIPLE project (https://www.gotriple.eu/), which is financed under the Horizon 2020 framework (https://cordis.europa.eu/project/id/863420) with approx. 5.6 million Euros for a duration of 42 months (2019-2023). At the heart of the project is the development of the TRIPLE platform, an innovative multilingual and multicultural discovery solution.