Can you create a step-by-step walkthrough for how to install this?

Been trying to figure it out with someone who has an older version installed and it doesn't seem to work the same.

As this isn't a normal extension (or doesn't appear to be), it's not exactly self-evident how this should be setup without instructions.

Items that would be good to know:

1. where to install
2. how to install
3. how to configure .vpy files to use this by default
4. how to configure this globally so that individual workspaces/folders don't need a copy
5. how to configure the terminal settings in vscode to use this properly

Items which might be complicating this for me:

1. using Windows
2. using python installed locally, not via mingw or other means
3. my default integrated terminal is Powershell (used for work, so not going to change but others might be in similar situations)