Advent and Holiday Calendars 2022

Here are some advent and holiday calendars for 2022:

Web Performance Calendar – The speed geek’s favorite time of the year

Advent of Code 2022

Perl Advent Calendar 2022

Lean UXmas 2022 – The top articles from 2022’s Agile & Lean UX News

24 Days in December – Thoughts of the PHPamily

It's a Shape Christmas | Digital Advent Calendar

There is one in French:

24 jours de web : Le calendrier de l'avent des gens qui font le web d'après

If you know any interesting holiday or advent calendars, please post them in the comments.