Export tricks (like exporting all accessors of a class at once)

There is a surprising among of tricks to know when it comes to exporting symbols in Common Lisp. I think they should be made more obvious in the "Package" chapter.

• SLIME has C-c x to export the symbol at point, or even the class and all its accessors with slime-export-class. It puts the exports in the :export field of the defpackage.

• Keeping exports in the defpackage has the drawback that they might run out of sync, for instance if the definition is rename or removed (then we export a symbol that points to nothing). This is an extra maintenance burden. A solution to this is to export at definition site:

(export 'foo)
(defun foo () ...)

This way if foo is rename or remove, the export won't be forgotten.

If typing foo twice really bugs you, you can use the cl-annot library.
Where it really shines is that it can export all class accessors for you, which is not doable automatically with (export...).
Example:

@export-accessors
(defclass foo ()
     ((bar :reader bar-of)
      (bax :writer bax-of)
      (baz :accessor baz-of)))

Start with the Package chapter and review how it currently explains exporting symbols. Incorporate the issue's examples covering SLIME, definition-site exports, and cl-annot's accessor export behavior; done means these export approaches and their maintenance trade-offs are clearly documented.