Record which GNOME panels are owned and which are not

Which panels we own is a question that otherwise gets answered one panel
at a time, and forgotten between them.

Claude-Session: https://claude.ai/code/session_01BRvzt4H8XXLPVH5MyYdk9L

docs/superpowers/plans/2026-08-19-desktop-integration.md

@@ -187,3 +187,27 @@ is self-contained and answers a question people actually ask. Phase 4 is small
 but changes daily habit. Phase 5 must precede 6 because 6 needs somewhere safe to
 keep a repository password. Phase 6 is the largest and is staged so each part
 stands alone.
+
+
+---
+
+## Deprecating GNOME Settings
+
+Not removing it -- making it unnecessary. Tracked here because "which panels do
+we own" is a question that otherwise gets answered one panel at a time.
+
+**Owned (2026-08-19).** Users and Sharing. Users drives accountsservice, the same
+daemon GNOME's panel drives, so a name or picture set here is what the login and
+lock screens read. Sharing covers remote login and remote desktop, and reports
+file and media sharing as absent rather than offering a switch for software that
+is not installed.
+
+**Still handed to GNOME.** Printers, Color, Wacom, and Universal Access. Each
+wraps hardware-specific tooling with no D-Bus surface worth reimplementing, and
+each launches with XDG_CURRENT_DESKTOP=GNOME because gnome-control-center refuses
+to run otherwise. Digital Wellbeing is deliberately absent: it configures
+gnome-shell's own screen-time reporting, which does not run here.
+
+**Open question.** Whether owning Printers is worth it. CUPS has a real API, but
+the panel is mostly driver discovery, and getting that wrong means a printer that
+silently does not print.