dud: A dub replacement

[Joseph Rushton Wakeling]

On Monday, 18 November 2019 at 20:48:53 UTC, bachmeier wrote:
> IMO this is one of the most important parts of the first five 
> minutes with the language. Someone has installed the compiler, 
> and now they want to test it out. If they have a bad experience 
> with Dub, they will not continue with the language. A package 
> manager, including the choice of format, is something you have 
> to get right. Rust understands this.

Fair point.  But that isn't something that has to be decided at 
the _start_ of a rewrite: better to focus on wanted behaviour, 
and then derive the ideal config format from that.