Seems to me to be an extension of the 'People who are really serious about software should make their own hardware.'. Say 'People who are really serious about

Seems to me to be an extension of the 'People who are really serious about software should make their own hardware.'. Say 'People who are really serious about making and selling a product should make their own production, supply and store chains' or 'People who are serious about their product should take ownership of all stages of that product.'