$ sudo gem sources -r http://gems.datamapper.org
Bulk updating Gem source index for: http://gems.rubyforge.org/
ERROR: While executing gem ... (Gem::RemoteSourceException)
HTTP Response 404 fetching http://gems.datamapper.org/yaml
$ sudo nano ~/.gemrc
Designing for DEF CON - Every year, it’s hard for me to contain my excitement as DEF CON approaches, so I try to focus that enthusiasm into various projects. (For the uninitiated,...