I'm looking for a cross-platform replacement for robocopy and therefore investigating your order66. Some remarks and findings: 1. Unattended operation seems not possible (question "happy" can't be overruled?) 2. dotnet-runtime is required; perhaps mention this requirement on de webpage. 3. I did a test with an empty source folder included: by default it appears in the output. But with RemoveEmptyDirsInOutput set True it still appears in the output. 4. Could you give more explanation/documentation on the usage of sync option "Template"? Ad. 2 Why not provide order 66 as a cros-platform PowerShell Core module? Then there is no need for the additional dotnet-runtime installation. Currently, I use robocopy form within Windows Powershell scripts. Best regards! (I/m a end-user, not a developer)