Develop a Mac Application Like SelfControl But for Blocking Other Apps

Hello, I'm looking for someone who could develop an app just like SelfControl ([login to view URL]), but that is able to block applications instead of websites. It should be as simple as SelfControl, but it's VERY IMPORTANT that it is IMPOSSIBLE to go back and cancel the "block". This is key as it is what makes SelfControl so great. Once you start the timer, there's no going back, even if you close the app, even if you restart your computer! (If it's impossible to make the block-timer still active after computer restart, the important thing would be that I can't cancel the timer and that it still works even I close the app) Thanks in advance.