Looks as if #Debian now supports the #RPi5 . See https://raspi.debian.net/ for links to images.

Note that the #RaspberryPi5 images are only for Testing (Forky) and Unstable. [0]

I haven't tested the images myself. If anyone does, then please confirm that they work.

There's a bit more information here: https://gwolf.org/2026/01/finally-some-light-for-those-who-care-about-debian-on-the-raspberry-pi.html

[0] Probably because the version of the Linux kernel released with Trixie doesn't support the RPi5; but we'll see what happens when kernel v.6.18 makes it to Backports.