GREAT NEWS !!! - see what EduID allows you (via university login details). From 2 November 2020, you can get, for example, to the National Digital Library-COVID application, where all digitized titles of the National Library and the Moravian Regional Library are accessible. Students and teachers of universities and colleges registered in the federation eduID.cz (including UMPRUM) and researchers can use temporary online access to more than 215,000 titles of monographs and periodicals, which is almost 64 million pages. The National Library obtained the consent of the collective copyright administrators, specifically the DILIA, OOA-S association, and also the consent of the Association of Czech Booksellers and Publishers. These entities gave their consent without the right to financial performance.
ANOTHER GOOD NEWS - even the National Technical Library (NTK) publicly provides its digital collections in times of emergency (currently extended until November 20, 2020)!
We try to be here for you and we are here, but if you still can't come, you may not find a lot of things and informations for this difficult time here: https://online.knihovny.cz/