CoreOS vs LinuxKit: What are the differences?
CoreOS: Linux for Massive Server Deployments. CoreOS is designed for security, consistency, and reliability. Instead of installing packages via yum or apt, CoreOS uses Linux containers to manage your services at a higher level of abstraction. A single service's code and all dependencies are packaged within a container that can be run on one or many CoreOS machines; LinuxKit: A toolkit for building secure, portable and lean operating systems for containers. LinuxKit, a toolkit for building custom minimal, immutable Linux distributions. Designed for building and running clustered applications, including but not limited to container orchestration such as Docker or Kubernetes.
CoreOS and LinuxKit are primarily classified as "Operating Systems" and "Container" tools respectively.
LinuxKit is an open source tool with 5.65K GitHub stars and 687 GitHub forks. Here's a link to LinuxKit's open source repository on GitHub.