Within an alpine mini root filesystem aka. rootfs, where I installed openrc, openssh, and networking tool, I am trying to start openrc with rootless bwrap, and fail. Here are debug logs: ~/rootfs/init ...

Roles currently assume systemd as the init system and contain systemd-specific configuration. This prevents the roles from working properly on hosts using openrc as the init system. To expand ...

From its next release onwards, Debian users will be forced to use just one init system - systemd. This much is clear from resolutions of the project's Technical Committee.