PSA: `systemd` is becoming kernel bound

TL;DR : systemd now ships eBPF programs (nsresourced, mountfsd, networkd helpers). eBPF programs are compiled against the Linux kernel they will run on, specifically kernel’s BTF informations, its vmlinux.h, its exact structure layouts. This is because the Linux kernel has no stable ABI for its internal data structures. eBPF CO-RE is unfortunately insufficient as a generic solution to this problem. This result into forcing systemd into the per-kernel package set (config.boot.kernelPackages.syste...