No more updates here: The parser stopped working after a layout change of upstream data.
This repo provides daily updated openmensa xml feeds for Studierenden Werk Berlin's university canteens.
No guarantees are given. The data is fetched and parsed in a automatic fashion. So if the upstream website changes, this could lead to errors. Especially consider this in regard to meal annotations offered to allergic persons. You should only rely on information provided on site.
The parser at https://github.com/escrl/openmensa-parser-berlin is used to generate feeds. If you detect an error feel free to file a bug or even better issue a pull request fixing it at the parser's repo.
Data is fetched from the official site of the canteens at https://www.stw.berlin/. Look at the parser for more details.