There really isn't any CPAN module/whatever for Dreamwidth, and I don't think any of *our* library-level stuff that we have created is really extractable into CPAN.
For DW-related stuff, I have personally contributed a patch to http://search.cpan.org/~bradfitz/Unicode-CheckUTF8-1.03/ ( but I am not sure what, if anything outside LJ/DW uses that module ) after working around the bug on DW itself.
And for non-DW-related stuff, I've contributed one patch to http://clang.llvm.org/ -- I want to do more, but I have not had the free time to learn the codebase enough to do much of anything.
eta: oh, and in sorta-DW-related I have also contributed a few patches to a tool that zorkian has been working on that I have been using to help with development/performance improvement.
no subject
For DW-related stuff, I have personally contributed a patch to http://search.cpan.org/~bradfitz/Unicode-CheckUTF8-1.03/ ( but I am not sure what, if anything outside LJ/DW uses that module ) after working around the bug on DW itself.
And for non-DW-related stuff, I've contributed one patch to http://clang.llvm.org/ -- I want to do more, but I have not had the free time to learn the codebase enough to do much of anything.
eta: oh, and in sorta-DW-related I have also contributed a few patches to a tool that