I watched an interesting YouTube video explaining how to install and use the Haskell extension in VS code, but the information appears to be obsolete, because there is no mention of ghcup, and ghcup is now required, along with a new version of the Haskell extension (the old one is labeled "legacy"). Unfortunately, I could not install ghcup on Windows due to obscure PowerShell security issues, or missing libraries in MSYS. While wrestling with this problem I discovered that Unix tools from Rtools must not be in PATH while working with Stack, probably due to incompatible MSYS versions. But removing Rtools from PATH does not resolve the ghcup installation problems. Any tips on ghcup installation under Windows would be appreciated. Thanks, Dominick