[igouy]

A Smalltalk implementation provides:

    Smalltalk VM 

    Smalltalk image file 

    sources file (plain-text original source code file) 

    changes file (plain-text change log, initially empty)

So there are plenty of ways to submit code to be marked.

See "OU LearningWorks: a customized programming environment for Smalltalk modules"

https://ieeexplore.ieee.org/document/841064