@maschinenlesbar.org/deutsche-digitale-bibliothek-cli
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    Variable pathNameProblemConst

    pathNameProblem: Problem = ...

    A Solr collection or request-handler name (search({ collection, requestHandler })): letters, digits, ., _ and - only. These go into the request path, so anything else (a /, ?, space or non-ASCII letter) cannot name a Solr core or handler. "." and ".." are rejected too: URL parsing would resolve them as dot segments and leave the route.