With the
textual-webcommand you can publish any Textual app on the web, making it available to anyone you send the URL to. This works without creating a socket server on your machine, so you won’t have to configure firewalls and ports to share your applications.
I went over to their Discord server and here’s what I was able to glean.
I gather they run a web-facing server which accepts text I/O from your Textual apps running on your personal machine or server, probably as a daemon. The connection between these two is via normal TCP/IP connections which your firewall already allows. Your Textual apps receive keyboard and mouse events and text.
They claim it should be “essentially free” for hobby use.
The text stream between your apps and their servers will eventually be (or are) encrypted.