If I started the article with describing all the advantages of cloud storage of data, you would think that I had been just thawed after twenty years of anabiosis, or that I use overdoses of hypnotics :). Therefore, I will put it briefly, in a programmer-like fashion: when I was faced with the task of making a program that could operate without being bound to the API of a particular service, enabling work with files located in a number of storage spaces (its purpose was backup), it turned out that it was not that simple. I decided to tell you about all the intricacies and pitfalls of that work in this article.

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After the release of Kinect sensor, in the wake of its success, other non-contact motion control devices began to appear. Kinect was the basis for the growth and development of the market for such devices: Investors have seen the prospects and understood the value of investing into gesture control devices. However, the most significant and successful was the Leap Motion Controller. As its prototype, the latter version is based on motion capture technology. This device connects to the USB port; in size, it is like two flash drives put together. Technically, there is Leap device that captures the projection of the user’s hands in space by using two optical sensors (cameras) and an infrared light source (the developers do not exclude the possibility that the future versions of the device will have a different number of cameras).

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