VitualXposed is an app that creates virtual spaces where one can run the APKs as Plugins. Thus, in these parallel spaces, one can also run some Xposed modules without having to root their devices or even unlock the bootloader or modify any system image.
Thus, one can run Xposed modules even on a non-rooted device. This app is based on Epic and VirtualApp for processing Xposed Hooks. Both of them are Open-Source libraries and Epic has been inspired by Xposed to Hook into their own Java Methods in the apps.
It also uses Exposed to load Xposed Modules and server some basic services. VirtualApp develops a container to install Apks and apps from System. When one enters the User interface of the app, it seems to be a simple launcher. The Open-Sourced Launcher3 which is a rootless Pixel launcher is used here,