{ ... }:
let
  nosv = <nosv>;
  ovni = <ovni>;
  nodes = <nodes>;
  nanos6 = <nanos6>;

  requiredSystemFeatures = [ "sys-devices" ];

  getVersion = x: toString (x.shortRev or x.dirtyShortRev or x.lastModified or "master");

  pkgs = (
    import <bscpkgs> {
      overlays = [
        (final: prev: {
          nosv = prev.nosv.overrideAttrs (old: {
            src = nosv;
            version = getVersion nosv;

            patches = (old.patches or []) ++ [ ./nosv-disable-dtlock-test.patch ];

            doCheck = true;
            inherit requiredSystemFeatures;
          });

          ovni = prev.ovni.overrideAttrs (old: {
            src = ovni;
            version = getVersion ovni;

            doCheck = true;
          });

          nanos6 = prev.nanos6.overrideAttrs (old: {
            src = nanos6;
            version = getVersion nanos6;

            doCheck = true;
          });

          nodes = prev.nodes.overrideAttrs (old: {
            src = nodes;
            version = getVersion nodes;

            doCheck = true;
            inherit requiredSystemFeatures;
          });
        })
      ];
    }
  );

  tarballs = {
    # nosv = pkgs.releaseTools.sourceTarball {
    #   name = "nosv-tarball";
    #   inherit (pkgs.nosv) src version;
    #   preAutoconf = "sed -i 's/AC_MSG_RESULT/_AS_ECHO/' configure.ac";
    # };
  };
in
{
  pkgs = {
    inherit (pkgs)
      nosv
      ovni
      nodes
      nanos6
      ;
  };

  inherit tarballs;

  sanitized.nosv = pkgs.nosv.overrideAttrs (old: {
    configureFlags = (old.configureFlags or []) ++ [
      "--enable-asan"
    ];
  });

  sanitized.nosv-ubsan = pkgs.nosv.overrideAttrs (old: {
    configureFlags = (old.configureFlags or []) ++ [
      "--enable-ubsan"
    ];
  });
}