+ erofs = hostPkgs.runCommand "nix-store-image" { } ''
+ mkdir $out
+ cd ${builtins.storeDir}
+ ${hostPkgs.erofs-utils}/bin/mkfs.erofs \
+ --force-uid=0 \
+ --force-gid=0 \
+ -L nix-store \
+ -U eb176051-bd15-49b7-9e6b-462e0b467019 \
+ -T 0 \
+ --exclude-regex="$(
+ <${storeContents}/store-paths \
+ sed -e 's^.*/^^g' \
+ | cut -c -10 \
+ | ${hostPkgs.python3}/bin/python -c ${
+ escapeShellArg (builtins.readFile
+ (modulesPath + "/virtualisation/includes-to-excludes.py"))
+ } )" \
+ $out/nixos.img \
+ .
+ '';
+ };
+
+in {
+ options = {
+ virtualisation.qemu.isolation.nixStoreFilesystemType = mkOption {
+ description = ''
+ What filesystem to use for the guest's Nix store.