Gerardwx

# based on https://gist.github.com/atdt/ebafa299e843a767139b

# Copyright (c) 2019 Ori Livneh
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
# 1. Redistributions of source code must retain the above copyright
#    notice, this list of conditions and the following disclaimer.