Workshop is used in German as naturally as in English and stands for a defined format: a few hours, a small group, everyone working on something concrete. In a Bitcoin context that might mean setting up a wallet, writing down a seed phrase safely, or running a node. The name therefore speaks to people who want to do it themselves under guidance. The .at ending points to events held in Austria and to an organiser based there.
For the education category, this is one of the practical names in the Bitcoin Akademie DACH set. The same name is also held on the Swiss ending and can be acquired together, for a trainer touring both countries. Fitting projects: a hands-on self-custody workshop series, team trainings for companies and banks, workshops for retailers accepting bitcoin, or a booking site for a network of independent trainers.