Suggest an alternative to

iCalendar

iCalendar data types, parser, and printer.

Why do you think that https://github.com/MedeaMelana/Zwaluw is a good alternative to iCalendar

A URL to the alternative repo (e.g. GitHub, GitLab)

Here you can share your experience with the project you are suggesting or its comparison with iCalendar. Optional.

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