tl;dr

Apostil is a minor mode for Emacs. It allows to add buffer-local notes to words.

Usage

M-s a . (apostil-add-note-at-point)

Add note for word at point.

M-s a w (apostil-add-note-for-word)

Add note for arbitrary word.

M-s a RET (apostil-get-note-at-point)

Look up notes for word at point

M-s a g (apostil-get-note-for-word)

Look up notes for arbitrary word.

M-s a <backspace> (apostil-unset-note-at-point)

Unset notes for word at point.

M-s a u (apostil-unset-note-for-word)

Unset notes for arbitrary word.