Develop a Mac Application - Adult Content Blocker

Develop a mac application to block access to ALL adult content on the internet. Here are the steps the user will follow: - user opens the software application - he/she specifies the time limit (in hours or minutes or days) for which all adult content on the internet should be inaccessible (using web browsers or any other application). - after the user clicks "Start blocking" button, all adult content should be inaccessible - when the software is blocking the access (i.e. in “blocking” state) the user should be able to add more websites of his/her choice to block. Core Requirements: - when the software is blocking the access, the user shouldn't be able to remove the timer or stop the timer in any way. - the only way to access the blocked content is to wait for the timer to expire. - blocking should remain even if the user restarts his/her laptop. - while the software is blocking the access, there should not be any observable delays in accessing the normal internet i.e. blocking shouldn't affect access to normal internet websites. - it should not crash, shouldn't much affect the performance of network, CPU & battery usage i.e. it should be efficient overall Deliverables: - mac application (executable) - well documented source code - a description of how to build the source code - a description of the approach used