If I may add one important TODO list item to frame development features it would be:

Please don't require my app to be production-grade authenticated just to test stuff in the Warplet. 

Not everyone can just use cloudflared.

Here are the details of what I had to do just to get a staging server that allows me to run kiwistand locally: https://github.com/attestate/kiwistand/commit/db7be588170394e6b6d8790b0837be329191d7ce

1. Had to rent a Hetzner VPS
2. Set up port forwarding for 3 ports using ssh
3. Had to register staging.kiwistand.com SSL cert with certbot
4. Had to change a bunch of logic that otherwise runs on port 4000 locally
5. Have to adjust the accountAssociations dynamically whether run with staging.kiwistand.com or news.kiwistand.com

Would be nice if there was a local testing tool so that I don't have to full authenticate the app just for testing stuff. This took forever and I bet most devs won't even go this far. 

And btw I think cloudflared and other tunnels run through http, meaning they're fundamentally not supporting multiple ports on one domain. At least I didn't figure it out and came across this statement.