Portable-VirtualBox7 is a free and open source software tool that lets you run any operating system from a USB stick without separate installation.
CURRENT VERSION: Portable-VirtualBox7 v7.0.12.2
This version/fork allows for the use of the latest versions of VirtualBox. Currently running version: VirtualBox v7.0.12
More info is available on the original version at http://www.vbox.me/ its current version: VirtualBox v5.1.22
Please see here for information on how to build from source: BUILDING.