" Qubes is not going to build this, yet I am running a prototype of it on my SGOS dev laptop."
You can do that in Qubes or the architecturally-superior GenodeOS. Genode is FOSS so nothing stops you. Any programs computing with secrets can run in an isolated partition to prevent leaks. Similar with protecting integrity of backups like in some partitioned filesystems. And you get the benefits of subgraph on the inside.
You can do that in Qubes or the architecturally-superior GenodeOS. Genode is FOSS so nothing stops you. Any programs computing with secrets can run in an isolated partition to prevent leaks. Similar with protecting integrity of backups like in some partitioned filesystems. And you get the benefits of subgraph on the inside.