Being a devil's advocate for a second. Wouldn't people with Tor be already resistant to this type of blockage we see in Sudan? Don't take me wrong, the ease of exposing Citrine over Tor surprised me and the whole concept is super cool. I'm just wondering if you really need Nostr when you have Tor.

they only need to dos tor, because mobile connections cannot directly open ports. tor is very easy to dos into unusable state, you know this if you use it daily. you could replace tor with some other solution such as yggdrasil, but its not compatible with general clearnet.