You can first install systemd-boot in the installer.
If you’re looking for a Snapper boot solution without Grub, Limine bootloader in combination with two extra tools limine-snapper-sync and limine-dracut-support-git, provides this functionality.
This Limine setup can be compatible with some parts of the EOS pre-config of systemd boot.
Both systemd-boot and Limine follow a similar philosophy, avoiding the inclusion of many bloated drivers, unlike Grub.