1{den, ...}: {
 2  den.aspects.dev.includes = [den.aspects.dev.binfmt];
 3  den.aspects.dev.binfmt = {
 4    nixos = {
 5      host,
 6      lib,
 7      ...
 8    }: let
 9      currentHostSystem = host.system;
10      allHostSystems = lib.filter (sys: lib.hasSuffix "linux" sys) (lib.attrNames den.hosts);
11      emulatedSystems = lib.filter (sys: sys != currentHostSystem) allHostSystems;
12    in {
13      boot.binfmt.emulatedSystems = emulatedSystems;
14    };
15  };
16}