Help and additional information for the usage may be found at either

• The front page README.md!
• Information about version management
• The command line (write "dub help"), available after building or installing a precompiled binary.
• The dub registry, containing information of e.g. the configuration format ("dub.json") and how to publish your own stuff!
• Getting in touch with other developers: http://forum.rejectedsoftware.com/groups/rejectedsoftware.dub/
• Which is similar to using the newsgroup server at nntp://forum.rejectedsoftware.com:119/rejectedsoftware.dub/
• (FYI: Both applications, the newsgroup server and the forum software are written using vibe.d - see the github page of vibe.d)
• Last but not least: the code!

• DUB enhancement proposals