That is very complicated if you take into account also Linux, Windows, iOS, MacOS, Android support, and related utilities like tray icon, etc. There are other efforts, too, but they are also wrappers. Like this C/C++ implementation https://github.com/webview/webview that targets only desktop operating systems.
As the project progressed, multiple significant revisions to Servo were released, and the Verso browser was unable to keep pace with these updates due to limited manpower and funding. Therefore, we will be archiving the repository for now and look forward to a future opportunity to revitalize the project and continue contributing to the Servo ecosystem. [0]
That is very complicated if you take into account also Linux, Windows, iOS, MacOS, Android support, and related utilities like tray icon, etc. There are other efforts, too, but they are also wrappers. Like this C/C++ implementation https://github.com/webview/webview that targets only desktop operating systems.