ASVimmer is a free Chrome extension developed by secondarykey that aims to enhance the usage of Vim with AppStream. AppStream is a popular service that offers a wide range of features, but one drawback is the cancellation of fullscreen mode by pressing the "ESC" key. ASVimmer provides a solution to this problem by introducing the use of the F11 key.

With ASVimmer, users can seamlessly navigate AppStream using Vim commands and enjoy a more efficient workflow. The extension is easy to install and integrates smoothly with Chrome, making it accessible to a wide range of users.

Please note that ASVimmer is an independent project and is not affiliated with AppStream or Amazon.com, Inc. It is solely developed by secondarykey to enhance the Vim experience with AppStream.

Overall, ASVimmer is a valuable tool for users who prefer to use Vim with AppStream, providing a convenient solution to the fullscreen cancellation issue.