Article author here — thanks for raising this. My article here was published in April 2021 and repurposed from my GitHub Universe talk given in 2019: https://www.youtube.com/watch?v=cRJZldsHS3c

Julian's article was published May 2021, one month after my Leaddev article, so hopefully it's pretty self-evident that Julian plagiarized my article pretty blatantly. I don't know Julian but I've heard from my former customers that his company has copied a lot of the work I did for my previous company, Pull Panda: https://github.blog/2019-06-17-github-acquires-pull-panda/