Support busybox?

[tosone]

In busybox ash, the realpath have no '--canonicalize-missing' option, remove it works well. Will u support and testing on busybox ash in the future?
And this tool is very nice.

[WoozyMasta]

I have accumulated a lot of tasks to support the script in macos, and most likely I will need to do a general refactoring, where it will be possible to abandon many bashisms and come to a POSIX sh compatible script.

But this is only in the plans, basically everyone uses the ready-made image of the container, and this is enough.