Add a remote execution smart cell

[José Valim]

It receives the node name, the cookie, an optional variable to assign the result to, and the code to eval. :)

[Zach Allaun]

A few nice-to-haves related to this:

• adding another remote execution cell should copy the node/cookie from the previous one
• ability to store the result in a variable (e.g. like SQL cell)

As for implementation, is the thought that this would boil down to the following? (Simplified somewhat)

true = Node.set_cookie(System.fetch_env!("LB_DIST_COOKIE"))
true = Node.connect(:"some-node@some-addr")

result =
  :erpc.call(:"some-node@some-addr", fn ->
    ...contents of cell editor...
  end)

[José Valim]

I think that’s pretty much it, yes!