Summary. One of the most important indicators for business is percentiles. The metric shows that in 95% of cases, our system works the way we want. We can accept it if there is a problem somewhere, because we understand the general tendency of how good…

I usually always worked without a docker and thought that a docker is needed only for large projects in large companies. But one day I saw how the docker works in tandem with the friend’s gitlab and realized that I still should study it. However,…

The blue whale is a great example of how the design of a complex project went wrong. The whale looks like a fish, but it is a mammal: it feeds the babies with milk, it has hair, and the bones of the forearm and hands…

Developers like to discuss  the cleanliness of the code. But at the same time, the very concept of “clean code” does not have a clear definition. The main book on this issue is “Clean Code”, where Robert “Uncle Bob” Martin immediately declares: “how many programmers,…

In this article, we share the experience of assembling and delivering iOS applications to users, which was accumulated in the process of debugging CI / CD. Training Everyone connected with the development of applications for Apple devices has already managed to appreciate the controversial usability…

Very often, when working on a project, tasks arise that require entering several commands into the console, for example, rebuilding the frontend, starting / stopping several docker containers, deploying the environment on a new development computer, and so on. This is generally not difficult, but…