This is a really cool idea.. I've used the app limiters (screenZen, Opal) and honestly they really helped limit my screen time and I've been able to transition away from having to use them. I wonder what the psychological difference between limiting access to apps and making the overall experience less smooth, whether friction at the network level can feel like a more natural nudge, where I found app blockers could at times feel like your fighting yourself. Would be interested to see retention data and the sustainability comparing the two approaches.