Should've been more clear - I've had to update significant portions of Textual and rich to enable propagating custom line-endings from the top level, but most of the code I touched was in rich.

As for the CRLF/LF issue, I paired textual with AsyncSSH, and was successful in making an SSH service hosting the app. However, connecting resulted in a text soup that I initially assumed was the fault of AsyncSSH. After some time, I realized it was due to the line-endings being defaulted to LF by rich (a reasonable decision in any other scenario.)

On both points, I'd be happy to share some snippets, but I'm halfway around the world from my home computer currently. If this is more than just a passing interest, I'd be happy to follow up upon my return.