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     (anvil)~/src$ cd forge
     (anvil)~/src/forge$ pip install -r requirements-dev.txt
+
+This will take a while.  If you get an error from pip, it is typically a temporary download error.  Just run the command again and it will quickly pass through the packages it already downloaded and then continue.
 
 And now to setup each of the Forge applications for development.  Because there are quite a few (at last count 15), we'll use a simple shell loop to set them up.