On 2024-06-08 15:59:12 +0200, lloda wrote: > Modules can't have numbers as names in general Modules most definitely *can* have numbers as names, my Advent of Code solutions are stored in files matching $YEAR/$DAY pattern (e.g. 2023/01.scm) and it works just fine, both define-module and use-modules. Have a nice day, Tomas Volf -- There are only two hard things in Computer Science: cache invalidation, naming things and off-by-one errors.