Call me old-fashioned, but the only thing necessary for turning a side project into open source is to grant anonymous access along with a license. Well, that, a

Call me old-fashioned, but the only thing necessary for turning a side project into open source is to grant anonymous access along with a license. Well, that, and either too much disposable time or a strict policy how to deal with users or contributors. Making this policy clear to your users/contributors is IMHO the most important thing - it allows you to tell people to GTFO if they disagree; after all, they already get more than they paid for.