The error had been fixed on upstream, but the problem is that the kernel which the upgrade includes remains the same one, so the kernel panic occurred after the restart, which was expected.
My solution was to select the old kernel installed with Ubuntu 21.04 from the grub menu. This way you can run Ubuntu 21.10 successfully and update it, in order to upgrade the 5.13.0-19 kernel to the latest one thereafter.
When I have started writing a book I often used Twitter to compose my thoughts to write about. Tweeting has helped me to output some sentences despite being fragmented. Still it is also sure that most of them are simply gone and neither reread nor rethought. From writing books I learned that rethinking your thought and rewriting your writing is a critical way of enhancing and organizing the insight to the size of a work. I would say when it comes to developing a thought, leaving raw ideas in sliced notepads leads you nowhere because you will easily forget what you have thought.
This year I participated #FOSDEM for the first time. FOSDEM is an annual conference of Free and Open Source Software (#FOSS) in Europe, which usually takes place at Brussels, Belgium.
Due to COVID-19 it took place completely online this year, and developers, programmers, lawyers, activists, and citizens like me gathered at chat rooms on #Matrix network, discussed and shared ideas on many themes related to FOSS, from how to write a code to how the free software movement should be progressed today.
One of the main features of #ActivityPub is that you can communicate with accounts on different services. By connecting ActivityPub services it becomes possible to start an open conversation on a static website, without relying on closed platforms such as Disqus where data of you and participants can be is mined, analyzed, and sold.