Have you ever considered #massspec quality control to be interesting for students? We did neither until we submitted our first challenge to this year's Data Crunch Cup in #wuerzburg (dccw.de). Eight (of 27) candidates managed to calculate BSA peptide retention times from a mzxml-like json-file to collect points: https://2023.dccw.de/challenges#Qualit%C3%A4tskontrolle%20in%20der%20Massenspektrometrie-30 (only in German, unfortunately)