nur/overlay.nix

# You can use this file as a nixpkgs overlay.
# It's useful in the case where you don't want to add the whole NUR namespace
# to your configuration.

self: super:

let filterSet =
      (f: g: s: builtins.listToAttrs
        (map
          (n: { name = n; value = builtins.getAttr n s; })
          (builtins.filter
            (n: f n && g (builtins.getAttr n s))
            (builtins.attrNames s)
          )
        )
      );
in filterSet
     (n: !(n=="lib"||n=="overlays"||n=="modules")) # filter out non-packages
     (p: true) # all packages are ok
     (import ./default.nix { pkgs = super; })