Both fields below are enhanced with 💾 and a
githubpages:// USL. On change (blur / Enter)
the value is committed straight to a file in your repo via the GitHub
Contents API; on reload it is read back. Unlike
gist://, the two fields
live at real, nested paths in the repo — be-persistent-demo/greeting.json
and be-persistent-demo/notes.json — not two files crammed
into one flat gist.
Type something, click outside the field (fires change),
then reload the page — the values come back from the repo. An
empty field writes nothing (breakTie treats a
blank element value as "nothing"), so no file is created until you
enter a real value.