The rules for scoring are written down in the score file, a plain-text
file containing a single Lisp form. The location of the score file is
defined in elfeed-score-serde-score-file.
The location at which scoring rules are maintained.
The default value is elfeed.score in
user-emacs-directory, which see user-emacs-directory in Emacs Lisp.
We’ll go over the format in more detail below.
One important thing to note is that while the score file is initially
hand-authored by the user, elfeed-score itself updates it. In other
words, the score file is maintained collaboratively by the user and by
elfeed-score. The user is responsible for authoring
rules. elfeed-score, on startup, will read the file into memory, and
after each scoring operation, will write the contents back out to the
scoring file, with attributes such as last match time and the number
of matches for each rule updated. This means that if you update your
rules by hand, you need to tell elfeed-score to re-load it before
(re-)scoring any elfeed entries. You can do this by invoking
elfeed-score-load-score-file (= l):
Load the score file into the current session.