Every now and then some piece of software gets made that tries to make things simpler and easier to use. Every few years one of those projects gets adopted in droves and becomes the hot new developer meme and retards who shouldn't be let within 5 miles of a production server start shitting out endless amounts "clever solutions" with it because it's the only tool they know. Then other shitters come in, copy paste the first piece of spit and gum they see and call it working code. Eventually you end up with an environment where you have a handful of good projects drowning in a sea of pajeetcode. In the 2010s that was node.js. Frontend devs writing critical backend code in javashit because it's the only language they know, and then writing entire applications to run inside a chromium instance because it's so much easier than using a GUI toolkit. Today, that tool is docker. Wanna run a static webserver? Here, use ten thrown together dockerimages. Wanna compile software? Use this custom dockerimage, we don't support anything else. Check out this cool new software! Oh, you want to run it? Just run the official dockerimage so you can start the program! Docker is "lightweight". Downloading 2 GB of images to get the libraries you need for running your 50 lines of python code is way less bloated than that sparse 3 GB qcow2 image you can run anywhere. The venv is only 250 MB? Who cares lol. Docker is "secure" so of course there's no problem when your dockerfile exposes two dozen ports to your entire network. How else could your 15 different images running on the same fucking machine possibly communicate with each other? Installing docker images is easy. Simply pick out the one official image on docker-hub from the millions of repositories with malware grafted onto them. Be sure to audit every single dockerfile to make sure all the devs did the same! Docker is easy. When something breaks you can docker compose down and rebuild your container. Cross your fingers that it works. It's still broken? Then you can docker exec -it sh and troubleshoot your image from withing. Whoops, you used a minimal image that doesn't have sh. You can just make your own less minimal image that includes sh. It's easy. Docker is the perfect development environment. Installing dependencies is as easy as adding them to your dockerfile. But why bother making your own when you can blindly copy paste dockerfile code you found on someone's blog? Now you have your dependencies working but oh no! Your VSCode linter doesn't know about your dependencies! Do you properly reconfigure your setup? Why bother thinking when you can – get this – install all your dependencies locally! Now you can experience the joys of running docker at the same time as the joys of dependency management just so your editor can tell you you misspelled np.random! Better make sure your build system doesn't use your local libraries anywhere! And that's not all. You want to use a modified library for your build? Then you can just rebuild your entire docker image with your library added in. And never before could you use several versions of the same library in the same build process. Cmake? Never heard of it! Docker is the future! >but I NEED it for muh servers Look at this John Netflix who's serving 200 users across the ENTIRE city. Better set up Kubernetes so you can maintain your single fucking machine just as easily as you could 2.5 servers with no k8s. >b-but muh pipelines Yeah, go continuously integrate that single user desktop only application you're working on you fucking faggot.