> It would be better to download an archive of some sort. For cases when this is necessary, it'd be easy enough to grab a .zip for the package rather than the .d for the module.
The .zips could take a cue from the Slackware package format too. They simply puts things in the appropriate folders to be added to your installation, then zip it right up. src/package.name/file.d bin/package.name.dll lib/package.name.lib package.name.txt (this contains metadata if you want it) You can unzip it locally, in your dmd folder, or whatever and then the files are available for use if your -L and -I paths are good. Thus, the same basic idea covers binary library distributions too. This could be in addition to grabbing the .d files alone.
