Well, 25 years later, it turns out Linux is a big thing, bigger than GNU was, and it’s everywhere around us. Linux kernel powers your Android smartphone as you read this article on your 5.5-inch display, it’s used by search engine giant Google, as well as 99.9% of the websites you’re accessing daily. Linux kernel, as the core component of a GNU/Linux operating system, is everywhere around us. Even if you don’t see it, Linux is there. For God’s sake, the whole Internet is powered by Linux! It’s used in airplanes, on your Wi-Fi router, on smartwatches, smart TVs, and any other smart device you have in your home. Yes, even your smart fridge uses Linux, but we won’t bother you with nonsense geek details because it’s celebration time.