Help: Heavy tests needed for the stable release

Hello everyone! We're very close to stabilizing the architecture now. From this point on, no new features (might be some improvments but without chainging the arch) will be added until we've fully covered the current functionality with tests and validated all edge cases.

To make that happen, we need everyone to thoroughly test the existing features and try as many edge cases as possible. Your feedback and bug reports will help us ensure everything is solid before we move forward.