Great project but get rid of the "Give root access to the shell script". This is nuts. Better use gecko-engine or similar direct with the renderer.

best REGARDS!!

Thank you for the comment.
It is not needed and for sure not preferable to use root. But you do need a user who has the rights to access the window system. Best praxis is to install a special user with very limited rights and let this user render the pages. I will change that in the documentation if its written wrongly.