Of course it is possible to securely sell & grant access to your content via Calamares, but there are many more ways to monetize your content these days:
This example is powered in co-operation with VideoStrip.
In-stream Advertizing
Content is still King. The best way to monetize your content is not always to grant access to it after payments. There are plenty ways to 'sell' your content in a more effective way.
Content behind completely closed doors is hard to discover and to get popular...
A new saying is 'If it doesn't Spread, it's Dead!'.