If you wanted one based on Scheme, I'd actually just point straight at Guix. In our communities we often consider Nix/Guix an improvement on Gentoo in most poss

If you wanted one based on Scheme, I'd actually just point straight at Guix. In our communities we often consider Nix/Guix an improvement on Gentoo in most possible ways, so wanting a Gentoo sounds odd like wanting to downgrade from Rust to C (I should probably nuance this view)... Yes there's no global no-multilib flag, so you have to put in some legwork to get the equivalent, but frankly you have to ask why you want that in the first place in a paradigm where none of your programs share libraries anyway. Indeed USE flags as a concept feel superseded.