emacs packages

[glis-glis]

Is there any documentation on how to use emacs with D? The github 
page of emacs d-mode [1] does not really explain a lot, nor does 
the wiki-page [2].

At the moment, I use the following packages: d-mode, 
flycheck-d-unittest and company-dcd. I really like the way 
unittests are underlined when failing by flycheck, giving an 
almost REPL-like programming experience.

Autocompletion with company-dcd and syntax check with flycheck 
mostly work fine, but they are not able to find my packages 
installed with DUB. Also, company-dcd-goto-definition only works 
for the standard-library, it is not able to find the definition 
of my own functions nor packages I installed with DUB.

Is there a dfmt-package for emacs? I still use clang-format, 
which kind of works for D-code except when the syntax does not 
exist in C++ (for example "=>" ).

[1] https://github.com/Emacs-D-Mode-Maintainers/Emacs-D-Mode
[2] https://wiki.dlang.org/Editors