there exists several (git) repositories specially made for testing things like forges (eg. gitlab), made of many corner/edge cases.
Keeping a list of them would be useful for testing our ingestion (loaders), storage and display (webapp) stack.
Related to T3170 and T3200.
See for example:
- https://github.com/cirosantilli/testme
- https://gitlab.com/gitlab-org/gitlab-test