Love this, thanks for sharing!! Did you get to building out the analytics dashboard? Would love to check it out! :D
Logical next step would be to hook it into KV and include a basic auth/admin API for editing routes and retrieving stats. But even that would add a bucket load of complexity to what is essentially 20-30 lines of obtuse logic currently.
Definitely no plans to deploy as a service with custom domains and enterprise offerings :)