# import all nix files in the current folder,
# and execute them with args as parameters
# The return value is a list of all execution results,
# which is the list of overlays
args:
# execute and import all overlay files in the current
# directory with the given args
builtins.map
# execute and import the overlay file
(f: (import (./. + "/${f}") args))
# find all overlay files in the current directory
(builtins.filter
  (f: f != "default.nix")
  (builtins.attrNames (builtins.readDir ./.)))