Self-hosting services and apps through Docker is a great way to save money, learn something new, and take full control of all your data. You can host your own media streaming service, back up and store all your mobile devices, run your own large language models (LLMs), and much more. The issue is that although these are run in an isolated fashion, there’s a good chance your local area network (LAN) is one giant single layer, supporting all devices and Docker containers. This could cause problems, especially when using Wi-Fi.