Julia Pluto cannot find dev installed package

Question

I have my own Julia package called foo which is stored in /private/tmp/foo and looks like:

foo
├── Project.toml
└── src
    └── foo.jl

I'd like to use it in an experiment I'm going to run. As such I

1. Create a new dir called bar for my experiments
2. Create a new Julia env to use Julia, ],activate .
3. I now install foo with (bar) pkg> dev /private/tmp/foo

I can now use foo within bar

julia> import foo
[ Info: Precompiling foo [79e59c38-1f99-4492-a045-e17729c6f495]

julia> foo.greet()
Hello World!

I now install Pluto with (bar) pkg> add Pluto, and open a new Pluto notebook. Even though I’m still in the bar env, which has foo installed I get a ArgumentError: Package foo not found in current path: as shown in the image below.

How can I create my own module, install and use it within a notebook? Ideally with Revise.jl still working.