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Creating a web application isn’t just about designing a nice user interface – it’s also about working with data. The so-called back-end (also written as “backend”, both forms are fine) represents everything that happens “in the background” – whether it’s writing or reading data from a database, retrieving information from other servers, or encrypting files.

You’ve finally finished your web application — now it’s time to deploy it to your server. All that’s left is to install packa… wait. Suddenly, you realize that the server is missing most of the tools required to run it. And so, you spend hours studying how to install everything properly. To prevent this exact situation, Docker was created.

When creating any kind of a web application, you will most likely ask yourself two questions: “How do I make my app good?” and “How do I make my app easy and pleasant to use?”. That’s what User Interface and User Experience are all about.

This article serves as one of the main reference points for Tour de Cloud, a system for uploading your application to the world! We will explore everything Tour de Cloud can do, how to use it, and the entire process of uploading your application. So, let's get started!

Imagine having to write all your code without ever being able to press Ctrl + Z to undo a mistake. Sounds like a nightmare, right? During development, there will be times when you’ll want to return to an earlier version of your code -- and that’s exactly why Git was created.