ostree-boot - 2020.8-2+deb11u1 main

libostree provides a library and tools for managing bootable, immutable,
versioned filesystem trees. See the ostree package's description for
more details.
.
This package contains configuration snippets and executables needed to
boot a Debian derivative from a libostree filesystem deployment. This
integration currently has some limitations:
.
- the initramfs must have been made using dracut
- the boot loader must be one that is supported by libostree, currently
GNU GRUB 2, syslinux/extlinux or Das U-Boot