Vagrant Cloud vs ZeroVM: What are the differences?

Developers describe Vagrant Cloud as "Share, discover, and create Vagrant environments". Vagrant Cloud pairs with Vagrant to enable access, insight and collaboration across teams, as well as to bring exposure to community contributions and development environments. On the other hand, ZeroVM is detailed as "Open-source lightweight virtualization platform". ZeroVM is an open source virtualization technology that is based on the Chromium Native Client (NaCl) project. ZeroVM creates a secure and isolated execution environment which can run a single thread or application. ZeroVM is designed to be lightweight, portable, and can easily be embedded inside of existing storage systems.

Vagrant Cloud and ZeroVM can be primarily classified as "Virtual Machine Platforms & Containers" tools.

Some of the features offered by Vagrant Cloud are:

• Vagrant Share: A single command to share your local Vagrant environment to anyone in the world
• Box Distribution: Vagrant integration provides flexible versioning and support for private or community boxes
• Discover Boxes: Start new projects faster using the right box. Find trusted and top-used community boxes

On the other hand, ZeroVM provides the following key features:

• Small, Light, Fast - ZeroVM is extremely small, lightweight, and fast. An execution environment can start in as little as 5 milliseconds.
• Secure - ZeroVM security is derived from the Chromium Native Client (NaCl) project and is based on the concept of software fault isolation.
• Hyper-Scalable - ZeroVM makes it easy to create large clusters of instances, aggregating the compute power of many individual physical servers into a single execution environment.

ZeroVM is an open source tool with 738 GitHub stars and 71 GitHub forks. Here's a link to ZeroVM's open source repository on GitHub.