This post shows how you can create your own operating system based on Buildroot. Add your own packages, patches, and your very own flavor to the experience. My own take on this is myLinux, which started out as a TroglOS, and before that as miniroot, by Henrik Nordström. Please feel free to dig around myLinux for more inspiration and tips on how to solve common use-cases. The manual, section 9, describes the basic process of setting up a our customizations as a BR2_EXTERNAL tree.