This is The Programming Chronicles source code GitHub repository. You can get here the source code of projects, exercises and examples published on The Programming Chronicles Blog.
The Programming Chronicles is the usual and typical blog where you can find articles about software development, with topics such as coding, design, architecture, software engineering, and so on.
The Internet is full of blogs like this one and I cannot really say this one has something exceptionally remarkable, unless you discover an article that attracts your attention in an unexpected and interesting way.
The common factor might be the special interest that the author shows about agile software engineering subjects such as TDD, ATDD, BDD, Scrum and Extreme Programming in general.
I'm sorry, the blog is written in Spanish, when I decide to write in English I'll let you know - I expect it could be soon.