Hi, I'm happy to announce my Pd external library, ofelia. 

ofelia is an external library written with openFrameworks and influenced by GEM for creating cross-platform multimedia applications.

The library consists of over 400 objects covering most features of openFrameworks core API, designed to ease the development of multimedia applications such as visual arts, musical apps and interactive games.

The library includes the following features:
The library is currently available to be used under macOS, Linux(64bit) and Windows. It will also be available on Raspberry Pi soon.

You can download and install it by searching "ofelia" in 'Help -> Find externals' then add "ofelia" to 'Preferences -> Startup -> New' in Pd.
There are some basic example patches you can try inside 'ofelia/examples' directory.
ofelia works with vanilla Pd-0.48-1 and other versions of Pd may not work.

The patch made with ofelia can be converted to a standalone application for macOS, Linux, Windows, iOS and Android without having to write any further code. (Thanks to ofxPd) You just need to install some required tools to compile it on your desktop.
For more information, please visit https://github.com/cuinjune/ofxOfelia

Any feedback is welcomed, hope you like it. :)