Yes, this is also my biggest concern. I'm working in bioinformatics and smallish open-source repositories created by other bioinformaticians which haven't seen

Yes, this is also my biggest concern. I'm working in bioinformatics and smallish open-source repositories created by other bioinformaticians which haven't seen much maintenance but still get used a fair amount (like https://code.google.com/p/biopieces https://code.google.com/p/biopieces) will probably be the worst casualties from this transition. Guess we'll have to backup those dependencies somewhere else...