How can you contribute to the project?

The first option is possible the easiest. Use the calendar framework and talk about it. Because the more people using the software the more feedback will be created and the less complains are produced like "Cal won't work with TYPO3, we will all die." or "TYPO3 has no calendar, it sucks." I love TYPO3 and I really hate such baseless ranting.

That is also an easy one. During your work, you might expierence some kind of bug or missing feature. Please don't complain about that (exclusivly) on Twitter but create a meaningfull issue on GitLab in the corresonding projects. Because I'm not able to monitore every possible ranting plattform for new bug or feature reports.

Providing code to fix existing issues or to create new extensions would be awesome. Maybe it is an issue you were anrgy about by yourself, maybe you just want to flex your coding muscles again or you are just looking for a nice little project for your companies trainee. I guess a working iCal export extension would be a nice idea for a start :-)

My mothertounge is German and I'm fluent in English and PHP. With every other language I'm totally lost. So I would be absolute happy if you could provide translations for the rest of the world.

I set up a couple of projects with the famous guys at https://crowdin.com/ to keep track of the translations and provide an easy interface to update it.

I am open for any kind of "financial applause". You might either donate a small amount on my PayPal account or maybe you are in the mood to fullfill a wish from my Amazon wish list.

If you are willing to offer a significant financial boost, please contact me. I am able to write invoices so you get some paper in return for your tax declaration and shareholder meeting.