It's a cool idea but I almost wonder if they would have gotten more functionality and the same end result by making use of ZFS snapshots and boot environments. Configuration could have even been kept in ZFS properties. Ikey has previous talked about ZFS not being right for a desktop distribution but I don't agree. Snapshots, rollbacks and checksums benefit everyone everywhere. It could be used transparently in the background so the users of Solus wouldn't even need to know it was being used if they didn't want to. That said, if ZFS can't be used, I can see 'clr-boot-manager' being useful, and I like the fact that Ikey works on projects that can be used outside of just Solus. I've been using Solus on one of my laptops and following along with its development and it's quite interesting project. They seem to be happy to try new things and do things in a different way if it seems like it will benefit the users, but they seem to still be content to use existing software if it looks like it will do what they are looking for.