linux-headers-6.1.0-0.deb11.32-common-rt - 6.1.129-1~deb11u1 main

This package provides the common kernel header files for Linux kernel
version 6.1.0-0.deb11.32 with the PREEMPT_RT featureset, generally used
for building out-of-tree kernel modules. To obtain a complete set of
headers you also need to install the
linux-headers-6.1.0-0.deb11.32-(flavour) package, matching the flavour of
the kernel you intend the build for.