I've seen people do absolutely batshit ... stuff in Gemfiles but making a web request to Github to figure out versions of gems to install (For GH pages) must still be one of the all time greats.

I said it before and I'll say it again, making the dependencies definition file executable code was a mistake. True for both ruby and elixir.

You can do extremely cool and convenient things with it and also shoot yourself in the foot an an extremely cool and convenient way.

#depfu #ThingsIHaveSeen

@halfbyte what's your recommendation for libs that need to test against different versions of dependencies (test matrix). Something like appraisal (multiple Gemfiles)? I usually use ENV vars, but I see the issue here for tools like Depfu (happy customer btw.).
@tvdeyen Yes, Appraisals work, and we (Depfu) support Appraisals up to a point.