Hello everyone 
We recently launched Frappe Builder, which is an open source, Figma-like website building tool to simplify designing and publishing websites. The idea was to keep the interface simple and familiar for designers so that they are empowered to ship web pages without much dependence on developers.
Currently, Frappe Builder comes with
- Responsive view support
- In-build CMS support
- Scripting capabilities (global styles and scripts)
- Robust component system
Additionally, Frappe builder ships lightweight web pages that excel lighthouse performance metrics out of the box. 
If you are interested do try it out and share your feedback.