[pjmlp]

It brings the Xerox PARC and ETHZ workstations REPLs into Windows.

Basically everything in the OS is available for scripting, regardless if it is a DLL, COM, .NET library.

And the shell is a proper programming language with modules support and uses structure data as default.

This means you can easily make use of any OS feature or even automate existing GUI applications via COM/OLE, or their own libraries.

And there is an OS provided IDE as well, with integrated debugger.

So overall one gets a little closer to what the Lisp Machines used to be, just with a mix of .NET and native libraries.

Yes this would be possible in UNIX, but given the fragmentation and POSIX culture, it will never be adopted at scale for it to work the same way as Powershell does on Windows.