A very interesting series of articles about the infrastructure of collecting signatures for Navalny’s campaign https://habrahabr.ru/company/fbk/blog/347342/. It is particularly interesting from an engineering perspective: the solutions used, how various problems were solved. It provided a plethora of useful links to tools and other software. The link leads to the first article, which contains links to the other three articles. Around two hours of reading.
Hi, I'm Rauf Aliev. 