[bug#53486] [PATCH] deploy: Add '--execute'.

[Ricardo Wurmus]

This sure is useful, but for the very first time I feel that this
doesn’t quite belong.  There are a bunch of tools out there that focus
exclusively on remote execution on several machines at once.

One of them is pdsh, which lets you also define groups of machines by
type and submit to a selected subset.  It also displays remote output
locally, and it sends local input to the remote as well.

It’s tempting to add this to “guix deploy” because it likely that
parallel remote execution is desired when “guix deploy” is used, but it
also feels … kinda wrong.

I wonder if there’s a Guixy spin on remote execution — the
aforementioned “deploy-hook” feels more at home here, in my opinion.

-- 
Ricardo