The fourth panel this desktop handed to GNOME Settings, and the last one
worth owning.
Driverless only, deliberately. Adding a printer that describes its own
capabilities over IPP is supported; choosing a PPD or fetching a vendor
driver is not, and the page says so rather than pretending. That
restraint is the whole design: a wrong driver produces a printer that
accepts jobs, reports success, and prints nothing, which is the worst
failure this page could ship because it looks like it worked. A printer
old enough to need a PPD stays a job for the system printer tool.
Printers and the queue are separate cards because they answer separate
questions. Which printers exist is one; where a document went is the
other, and it is the one that actually brings someone here -- so the
queue is a single list across every printer.
Device URIs are validated by scheme before reaching CUPS, whose backends
run as root. file: and pipe: do not lead to a printer and are refused
here rather than further down.
This machine has no printer, so the page was built against a temporary
CUPS queue that was created, exercised through the service, and removed;
the service was confirmed to observe the removal rather than merely
perform it. Discovery and the driverless add path are verified by their
refusals rather than against hardware.
Claude-Session: https://claude.ai/code/session_01BRvzt4H8XXLPVH5MyYdk9L
Two of the panels this desktop still handed to GNOME Settings.
Users manages the account through accountsservice -- the same daemon
GNOME's panel drives, so a name or picture set here is what the login
screen and lock screen read. Name, picture, account type, password,
automatic login, and adding or removing other accounts. Every change is
authorized by polkit through the agent this session already runs; a
dismissed prompt is a normal outcome and says so.
A new password is read from the helper's stdin, hashed by openssl
reading its own stdin, and handed over D-Bus from inside that process.
It is never an argument: argv is world-readable through /proc, so a
password passed that way is published to every process on the machine.
Removing an account takes two presses and says it destroys their files;
the last administrator cannot be removed or demoted, because a machine
nobody can administer is not a state to offer.
Sharing reports what is actually true, including "the software for this
is not installed" -- the honest answer for Samba here, and the case the
panel it replaces shows as a switch that does nothing. Password sign-in
is reported from sshd's configuration rather than assumed: claiming
"keys only" when the file is silent would state a security property that
cannot be backed up.
The Control Center now draws the account's real picture and name. A
generic glyph sat there while a real avatar was already set, which made
the desktop look like it did not know whose it was.
Also here: the KDE Connect contract no longer requires a phone to be
awake. kdeconnectd drops its device objects for a phone it has not seen
recently while the pairing survives in its config, so demanding one
failed whenever the phone was off.
Claude-Session: https://claude.ai/code/session_01BRvzt4H8XXLPVH5MyYdk9L
Nothing showed what was using the drive, and removable media was handled
by a tray helper with no surface in Settings at all.
One scroll rather than tabs: space above, the device below. Every other
settings page is a scrolling card stack, and a tab would not be
deep-linkable from the launcher command or from search.
Three things the page has to get right, each now pinned by a contract,
because each is a way it could quietly lie. / and /home are one btrfs
filesystem sharing one pool of free space, and a page that copies df
shows double the free space that exists. zram is a block device and is
not storage; counting it as a drive overstates this machine by 8 GB.
Unmount and eject refuse anything not on a removable drive, because the
UI is what asks and a UI can be wrong.
The cheap read -- layout, usage, health -- runs when the page opens, at
around 90ms. Measuring what is filling the drive means walking every
file, so it happens on request and says so rather than showing an empty
list that reads as "nothing here".
Partitioning and formatting are deliberately absent. A settings pane is
the wrong place to put erasing a disk two clicks deep; the page opens
GNOME Disks for that.
Adding the page found a fourth hard-coded page list in ShellState. A
page missing from it does not error -- openSettings() falls back to
"home", so the launcher opens the wrong page and logs nothing. A
registry contract now holds the three lists together.
Claude-Session: https://claude.ai/code/session_01BRvzt4H8XXLPVH5MyYdk9L
Settings had a search index and the launcher had script commands, and
neither knew about the other: finding a setting meant opening Settings
first and searching there. One command per page is now generated from
the same sources the in-app search reads -- the sidebar page list, the
group routing, and the schema labels -- so a setting searchable inside
Settings is searchable from the launcher without a second list to
maintain.
Generating it surfaced a gap in the in-app search as well. Six pages had
no vocabulary at all, because their contents come from the system rather
than our schema, so searching "volume" found nothing in Settings either.
They now carry entries, which improves both surfaces.
The product prefix is dropped from every hand-written command title. The
generated ones are qualified "Settings: <page>" instead: a bare page
label collides with the feature of the same name, and two commands
sharing a title are indistinguishable in a launcher.
Claude-Session: https://claude.ai/code/session_01BRvzt4H8XXLPVH5MyYdk9L
Gabriel Brown