Thank you guys for the comments.
Regarding the documentation, both online and local (w/search) documentation covers 90% of methods in the library, where each function, type and constant value are explained (even each member of enumeration); nevertheless, there are many units such as DirectX / OpenGL providers that override base classes and implement their methods without adding anything new - I haven't yet decided how to pursuit those as documenting them will be of little to no use. There are still few units, however, that do need to be documented. This and more samples are planned to be worked on, but that'll follow as soon as I finish things with the web site.
As I've mentioned, I will be adding tutorials, documenting how to cross-compile to all supported platforms, preparing FreePascal and so on. If platforms such as Windows or Linux are easy, cross-compiling to Raspberry PI and other devices can be quite tricky - for instance, to compile GPU samples, there is a handful of ".so" files that need to be copied from the device to be able to link properly; for example, Android requires a bit different workflow, where you work inside Lazarus and compile from there, but then go to Eclipse to deploy the application. This is what I'll be doing in the next couple of days and will try to explain everything.

Edit: source code has been uploaded to GitHub.