Ottomatica slim vs VMware vSphere: What are the differences?

Developers describe Ottomatica slim as "Build and run tiny vms from Dockerfiles". It will build a micro-vm from a Dockerfile. It works by building and extracting a rootfs from a Dockerfile, and then merging that filesystem with a small minimal kernel that runs in RAM. On the other hand, VMware vSphere is detailed as "Free bare-metal hypervisor that virtualizes servers so you can consolidate your applications on less hardware". vSphere is the world’s leading server virtualization platform. Run fewer servers and reduce capital and operating costs using VMware vSphere to build a cloud computing infrastructure.

Ottomatica slim and VMware vSphere can be primarily classified as "Virtualization Platform" tools.

Ottomatica slim is an open source tool with 1.68K GitHub stars and 39 GitHub forks. Here's a link to Ottomatica slim's open source repository on GitHub.