The e-IRG Workshop organised in the framework of the Czech Presidency of the Council of the Union was implemented on 12.-13. December as hybrid event in Prague and online. The Workshop continued the long-standing insightful accomplishments of the e-IRG Workshop series. The Workshop series addresses important and relevant topics concerning the European e-Infrastructure landscape, the interconnection of e-Infrastructures themselves, as well as to Research Infrastructures. The e-IRG Workshop is not only an instrument for e-IRG to explore specific e-Infrastructure topics in depth, but also aims to provide views and opinions on topics expected to have an impact on the future developments in the European e-Infrastructure domain and beyond. The Workshop under the Czech EU Presidency had four sessions addressing the i) interconnection, coordination and cooperation of European e-Infrastructures, ii) the energy crisis and its impact on e-Infrastructures, iii) the interconnection of the European Data Infrastructure and the Common European Data Spaces and finally iv) the Interlinking and interaction between data, publications and persistent identifiers.