No right click is a pretty big deal breaker for any application I would want to develop.

https://github.com/gabrielrcouto/php-gui/issues/46

If there are problems hooking up something as simple as a new mouseclick, the library is prohibitively primitive.

I would honestly like to see how this holds up against Electron in performance. I know that may be setting the bar a bit low, considering one is a bundled chromium, and this just seems to interact with UI libraries directly.

Thought I don't know if PHP would be my first pick if I wanted to develop a desktop application. Then again Electron, and JS wouldn't be either.

My brief experience with PHP was pretty good. I remember it being fairly nice to work with, and really easy to get up and running with.

The choice of a Pascal program to do the actual drawing was interesting. I'd heard of Lazarus, but hadn't seen it used before.

"Fairly nice" compared to what?

PHP is easy to get started with, but it's amazingly baroque in terms of language design. It's the ultimate in "outsider art" becoming mainstream.

This is a crowded area with python-gui and even tcl/tk, i.e. script language for desktop GUI development

That doesn't sound very crowded.