# cabal sandbox init
Writing a default package environment file to <ROOT>/sandbox-shadow.dist/cabal.sandbox.config
Creating a new sandbox at <ROOT>/sandbox-shadow.dist/sandbox
# cabal sandbox add-source
# cabal sandbox add-source
# cabal install
Resolving dependencies...
Configuring p-0.1.0.0...
Preprocessing library 'q' for p-0.1.0.0..
Building library 'q' for p-0.1.0.0..
Preprocessing executable 'foo' for p-0.1.0.0..
Building executable 'foo' for p-0.1.0.0..
Preprocessing library for p-0.1.0.0..
Building library for p-0.1.0.0..
Installing internal library q in <PATH>
Installing executable foo in <PATH>
Installing library in <PATH>
Installed p-0.1.0.0