My two cents on what D needs to be more successful...

[Guillaume Piolat via Digitalmars-d]

On Sunday, 21 May 2017 at 05:52:11 UTC, Ecstatic Coder wrote:
>
>   - std.database (connect/use MySQL/MongoDB/etc databases)

http://code.dlang.org/packages/arsd


>   - std.web (serve web data/files/pages)

vibe.d
http://code.dlang.org/packages/arsd


>   - std.audio (load/play/process/record sounds/musics)

http://code.dlang.org/?sort=updated&category=library.audio


>   - std.image (load/show/process/record images)

http://code.dlang.org/packages/imageformats
http://code.dlang.org/packages/ae
http://code.dlang.org/packages/arsd


>   - std.video (load/show/process/record videos)

http://code.dlang.org/packages/ae
I sometimes process video with command-line pipes using 
https://github.com/p0nce/y4m-tools

>   - std.graphic (draw 2D/3D graphics)

http://code.dlang.org/packages/ae
Check out its explanation 
https://blog.thecybershadow.net/2014/03/21/functional-image-processing-in-d/


>   - std.input (get mouse/touchscreen/etc events)

Honestly you are better off with using SDL.
http://code.dlang.org/packages/derelict-sdl2


>   - std.ui (draw 2D user interfaces)
http://code.dlang.org/packages/dlangui


> I agree that at the moment, all these developments can be 
> possible through several third-party libraries.

So we just need ranking in code.dlang.org?