Face unlock for Omarchy 4, made by the community. Look at the screen to unlock
the lock screen, sign in at the login screen, answer sudo, or approve system
prompts. Your password keeps working everywhere, always.
It looks and moves like the rest of Omarchy: the lock screen and polkit dialog are Omarchy's own, with a mark made of square pixels that scans, turns into a check when it knows you, and shakes when it does not.
As a package, built from this repository (the AUR listing follows once AUR registration reopens):
git clone https://github.com/L0adn9/omaface ~/.local/src/omaface
cd ~/.local/src/omaface/packaging/aur && makepkg -si
omaface setup
(Coming from a git install? omaface uninstall --keep-data first; your
faces and settings carry over.)
Or installed straight from git:
git clone https://github.com/L0adn9/omaface ~/.local/src/omaface
cd ~/.local/src/omaface && ./install.sh
The package only puts files in place. omaface setup (run as your user; the
git installer runs it for you) is what switches omaFace on: one line above the
password in sudo, polkit and the login screen, and the lock screen and polkit
dialog handed to the omaFace plugin. Then open omaFace from the app launcher (or run omaface settings) and
choose Set up omaFace.
- Omarchy 4 or newer (the Quickshell lock screen).
- A camera. omaFace looks for an infrared (Windows Hello) camera first and uses it when there is one. A laptop without one uses its regular webcam, for everything, with liveness and attention checks on every scan (see Laptops without an IR camera). This is automatic; you do not need to know which camera you have.
- About 120 MB for OpenCV if it is not installed yet. pacman lists what it adds and asks first.
| System prompts wait for you: click or Enter for omaFace, or just type the password. | sudo asks the same way in the terminal. The camera stays off until you choose. |
| Settings: where omaFace is used, attention, ask first, appearances. | Enrolling (the preview is braille, drawn here), and the lock screen while it scans. |
| Place | When it scans | Notes |
|---|---|---|
| lock | on activity after locking (key, pointer, a click on the mark), and right after waking from sleep | a lock you just asked for is not undone while you still sit there |
| login | when the login screen appears; Enter on the empty field scans again | SDDM as the login manager, and a face enrolled |
| sudo | after you press Enter at the omaFace prompt | any other key goes to the password; typed keys are not echoed while it looks |
| polkit | after you click the mark or press Enter | typing goes straight to the password field, nothing lost |
Each one can be switched off in the settings window or with omaface disable.
Unlocking the screen is something you are already doing when you sit down, so
the lock and login screens scan by themselves. sudo and system prompts
approve changes to the system, so there omaFace waits until you ask for it:
Enter in the terminal, Enter or a click in the dialog. Until then the camera
stays off; type instead and it uses the password. Dismissing the prompt ends
the wait at once, and after 30 seconds without a choice it falls back to the
password. (omaface set confirm off scans right away instead.)
On by default. omaFace only unlocks when both eyes are open and on the screen, so it does not open for someone asleep, looking at their phone, or turned away.
Two small models look at every frame that matches, on the IR camera and the webcam alike: Google's MediaPipe eye model checks that both eyelids are open, and a gaze model checks where the eyes point, against where they pointed at the screen when you enrolled. Your head's angle is checked too.
- Anywhere on the screen counts, down to its bottom edge; you do not need to look into the camera.
- Eyes closed, eyes on your phone or your lap, or the head turned away do not unlock. A miss never counts toward the lockout.
- Eyes turned far to the side while the face still points at the screen are not always caught on the IR camera; turning the head is.
- Some glasses throw glare over the eyes. If omaFace recognizes you
(
omaface testsays so) but never unlocks, turn attention off in Settings.
When no IR camera is found, omaFace uses the regular webcam, for everything:
the lock screen, the login screen, sudo and system prompts. It works the same
way: glance at the screen and it unlocks. A webcam sees what your eyes see, so
a photo or a phone screen showing your face looks like you; three checks run on
the same frames, with nothing for you to do:
- Is it a live face. Two small anti-spoofing models (Minivision's Silent-Face, trained to tell live faces from prints and screens) score every frame. A photo or a screen may fool them on a lucky frame, so it takes a run of about eight good frames in a row (a third of a second).
- Are you paying attention, the same check as on the IR camera (see Require attention).
- Is it you, with a stricter match threshold than the IR camera.
Measured on a laptop webcam: the user unlocked in about 0.4 seconds; eyes closed, eyes on a phone held low or at the chest, a photo of the user on a phone (close, far, tilted) and a video of the user on a phone never unlocked. That is one webcam in one room; lighting matters, and in a dark room the webcam simply falls back to the password.
More, still with nothing to do:
sudoand system prompts always ask first with a webcam: nothing scans until you press Enter or click, even if ask first is switched off.- 9A07 Three failed tries and it waits for your password, until you use it once.
- Webcam and IR appearances are kept apart.
It is still weaker than an IR camera: a good enough video or mask might get past a passive check. For the strictest setting, Head turns in Settings adds a few random head turns to every scan (a recording cannot follow a sequence it does not know); it is off by default because it is slower than typing. The switch Webcam fallback turns webcam mode off; an IR camera, when there is one, is always used instead.
- Nothing stays in memory. The scanner starts when something asks, looks for a few seconds and exits (about 100 MB while scanning, nothing at rest). No daemon. OpenCL is off, so a discrete GPU is never woken.
- The camera turns off as soon as the answer is known, or within about a fifth of a second when a prompt is cancelled or the settings window closes.
- The password always works. Each omaFace PAM line is
sufficientand sits directly above the password line: success skips the password, and anything else (no face, wrong face, timeout, lid closed, camera busy, engine broken, service stopped) falls straight through to it. Omarchy's fingerprint lines, if you use them, keep their place above it. - Everything stays on the machine. No network access, no images saved. Faces are YuNet detections turned into SFace templates, fully offline.
- The shell plugin
io.github.l0adn9.omafacereplacesomarchy.lockandomarchy.polkit. It is built on your machine from Omarchy's installed files plus small anchored patches (tools/patches.py), not shipped as a frozen copy, and the build refuses to produce a half-patched lock screen.
- The IR camera ignores phone and monitor screens (they give off no infrared),
and attention needs live eyes reflecting the camera's own light. There is
still no depth sensor: a good enough infrared-visible replica, or a close
relative, might pass. Treat it as convenient, not as strong as your
password.
omaface set threshold 0.6makes matching stricter (default 0.50;omaface testshows your scores). - With an IR camera, five scans that see a face that is not yours pause Face ID for five minutes. With a webcam, three failed tries pause it until the password is used. The password always works.
- Face templates are root-owned (
/var/lib/omaface/<user>, mode 0640, group = your user), so nothing running as you can swap in another face. Only root can enroll, rename or remove. sudoand polkit only accept a face while you have an active local session, and only after you ask for omaFace.sudofrom SSH or another remote session never uses the camera.- The scan service runs with no capabilities, no network, a read-only
filesystem apart from
/run/omaface, and access to video devices only.
omaface status
omaface setup switch omaFace on for you (the git installer runs it)
omaface settings the omaFace window
omaface enroll add your face (up to 3 appearances, e.g. with glasses)
omaface test look at the screen and see the scores
omaface rename <N> <name> rename an appearance
omaface remove <N|all> remove one, or all
omaface enable|disable lock login sudo polkit
omaface set attention on|off
omaface set confirm on|off ask first for sudo and system prompts
omaface set rgb_fallback on|off
omaface cameras cameras on this machine and which one is used
omaface emitter check that the IR light comes on
omaface doctor check every part
omaface sync rebuild the shell plugin (after updates it happens by itself)
omaface uninstall put everything back the way Omarchy had it
- No camera found:
omaface cameras. If your IR camera is listed but not picked:omaface set device /dev/videoN. - "No face found" all the time with an IR camera:
omaface emitter. Many Lenovo, Dell and HP laptops keep the IR light off until it is switched on once:omarchy pkg aur add linux-enable-ir-emitter, thensudo linux-enable-ir-emitter configure. - Recognized but never unlocks:
omaface testsays why for every frame (eyes closed, looking away, head turned). Re-enrolling records where your eyes point at the screen;omaface set attention offturns the check off. - Lock screen misbehaving:
omarchy plugin disable io.github.l0adn9.omaface(brings backomarchy.lock),omarchy plugin enable omarchy.polkit, thenomarchy restart shell. The same commands work from a TTY (Ctrl+Alt+F3). - Login screen misbehaving:
sudo rm /etc/sddm.conf.d/20-omaface.confreturns to Omarchy's theme. SDDM also falls back to its built-in theme on a broken one. omaface doctorchecks every part and names the fix.
Doesn't work on your laptop, or works and you want to say so? Open a camera
report.
It asks for your laptop model and what omaface cameras and omaface doctor
say, which is what it takes to make omaFace work on more laptops.
- OpenCV upgrade: the git install has a pacman hook that rebuilds the
engine and swaps it in only after it passes a self-test. The package is
rebuilt like any AUR package; until then omaFace steps aside and the
password works, and
omaface doctorsays so. - Omarchy update: a post-update hook runs
omaface doctor --after-update. If Omarchy changed its lock screen or polkit dialog, the plugin is rebuilt from the new files; if that cannot be done cleanly, the working copy stays. If the plugin ever fails to load, Omarchy's own lock screen and polkit dialog are switched back on, so you are never left without a lock. - omaFace itself: the package updates with the rest of the system, and
the plugin is rebuilt after the next
omarchy update(or now:omaface sync). From git:git pull && ./install.sh. Enrolled faces and settings are kept either way.
The package installs under /usr, the git install under /usr/local
(written <prefix> here); the git install's units live in /etc/systemd.
| Path | What |
|---|---|
<prefix>/lib/omaface/ |
omaface-engine, omaface-pam, setup and teardown (git: also rebuild, uninstall) |
<prefix>/bin/omaface |
the command |
<prefix>/share/omaface/ |
models (checksummed), plugin sources and build tool, default settings |
/usr/share/sddm/themes/omaface/ |
the login theme |
omaface.socket, omaface@.service |
the scanner |
/usr/local/src/omaface/, /etc/pacman.d/hooks/omaface.hook |
git only: rebuilds the engine when OpenCV upgrades |
omaface setup adds:
| Path | What |
|---|---|
/etc/omaface/config |
places, attention, ask first, webcam, thresholds, timeouts |
/var/lib/omaface/ |
enrolled faces, PAM backups |
/etc/pam.d/{sudo,polkit-1,sddm} |
one marked line each; omaface-lock |
/etc/sddm.conf.d/20-omaface.conf |
selects the login theme once a face is enrolled |
~/.config/omarchy/plugins/io.github.l0adn9.omaface/ |
lock screen, polkit dialog, settings |
~/.config/omarchy/hooks/post-update.d/omaface |
runs the doctor after updates |
omaface uninstall takes all of that back out (--keep-data keeps enrolled
faces) and puts PAM, the lock screen, polkit and the login screen back as they
were. A git install's files go with it; the package is then removed with
sudo pacman -Rns omaface. Removing the package without it still takes
omaFace out of PAM and the login screen first.
Built on Omarchy (MIT), the
YuNet
face detector (MIT) and
SFace
recognizer (Apache 2.0) from OpenCV Zoo, and OpenCV. For
webcams: Minivision's
Silent-Face
anti-spoofing models (Apache 2.0, via
yakhyo/face-anti-spoofing),
Google's MediaPipe iris model
(Apache 2.0) and the
yakhyo/gaze-estimation gaze model
(MIT). See NOTICE. omaFace is MIT licensed.
Omarchy is a registered trademark of 37signals LLC. omaFace is an independent community project, not affiliated with or endorsed by 37signals, the Omacom Foundation or Apple.