Joel Spolsky recently wrote on this topic, with focus on full time employment https://www.joelonsoftware.com/2016/12/09/developers-side-projects/ https://www.j

Joel Spolsky recently wrote on this topic, with focus on full time employment https://www.joelonsoftware.com/2016/12/09/developers-side-projects/ https://www.joelonsoftware.com/2016/12/09/developers-side-pr... "... If you hire a photographer to take pictures for your wedding, you own the copies of the pictures that you get, but the photographer still owns the copyright and has the legal monopoly on making more copies of those pictures. Surprise! Same applies to code."