[$] Whither the Apple AGX graphics driver?

Much of the early Rust code for the kernel has taken the form of
reimplementations of existing drivers as a proof of concept. One project,
though, is entirely new: the driver for Apple GPUs written by Asahi Lina.
This driver has shipped with Asahi
Linux for some time and, by many accounts, is stable, usable, and a
shining example of how Rust can be used in a complex kernel subsystem.
That driver remains outside of the mainline kernel, though, and merging
currently looks like a distant prospect. The reasons for that state of
affairs highlight some of the difficulties inherent in integrating a new
language (and its associated development style) into the Linux kernel.