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Architecture

​
Apps
Lomiri
Core
Hardware
​
Both devices
Halium only
Mainline only
Apps
Everything shared — no hardware dependency
All shared
Core apps
lomiri-dialer-app
phone calls UI
 lomiri-messaging-app
SMS & MMS UI
 lomiri-addressbook-app
contacts UI
morph-browser
web browser
 lomiri-mediaplayer-app
audio & video player
 lomiri-printing-app
print via CUPS
lomiri-content-hub
share between apps
 lomiri-download-manager
file downloads
 lomiri-thumbnailer
image & video previews
Media & data
mediascanner2
indexes media library
lomiri-online-accounts
Google, Nextcloud…
 lomiri-online-accounts-plugins
per-service plugins
syncevolution
CalDAV/CardDAV sync
 buteo-syncfw
sync framework
 evolution-data-server
contacts & calendar store
Shell & UI toolkit
Everything shared
All shared
Shell
lomiri
launcher & compositor
 lomiri-system-compositor
boot compositor
 lightdm
display manager
lomiri-app-launch
app lifecycle
 lomiri-url-dispatcher
URL/intent routing
 qtmir
Qt/Mir integration
lomiri-ui-toolkit
QML components
 maliit-framework
on-screen keyboard host
 lomiri-keyboard
keyboard + language packs
Indicators (status bar)
lomiri-indicator-network
signal & WiFi
 ayatana-indicator-power
battery
ayatana-indicator-sound
volume
 ayatana-indicator-bluetooth
Bluetooth
ayatana-indicator-display
brightness
 lomiri-indicator-location
GPS status
System settings
lomiri-system-settings
main settings app
 lomiri-system-settings-cellular
SIM & data
lomiri-system-settings-phone
call settings
 lomiri-settings-components
fingerprint, VPN UI
lomiri-polkit-agent
permission prompts
 lomiri-push-service
push notifications
System services
Mostly shared — telephony, sensors & location fork per device
Partly forks
Security, OTA & USB (shared)
apparmor
per-app sandboxing
 click-apparmor
Click app profiles
 trust-store
runtime permissions
signond
credential storage
 system-image
OTA updates & reset
 packagekit
package management
usb-moded
USB mode switching
 adbd
ADB daemon
 mtp-server
MTP file access
Networking (shared)
network-manager
WiFi, data, VPN, hotspot
 wpasupplicant
WPA/WPA2 auth
bluez
Bluetooth stack
 urfkill
flight mode / RF kill
dnsmasq
hotspot DHCP
 aethercast
Miracast display
Waydroid (shared)
waydroid
Android app container
waydroid-sensors
sensor bridge into container
Telephony — high level (shared)
lomiri-telephony-service
call/SMS API for apps
 telepathy-ofono
Telepathy/ofono bridge
 lomiri-history-service
call & message log
nuntium
MMS daemon
 tone-generator
DTMF tones
 lineageos-apndb
carrier APN database
lpac
eSIM / LPA client
 lomiri-location-service
location API for apps
Telephony — modem backend (forks here)
ofono-sailfish
ofono for Android RIL
 ofono-binder-plugin
modern Binder RIL
 ofono-ril-binder-plugin
legacy RIL bridge
 ofono-binder-plugin-ext-mtk
MediaTek extension
 ofono-binder-plugin-ext-qti
Qualcomm extension
ofono (mainline backend)
talks to kernel modem driver
Location (forks here)
via Android GPS HAL
through libhybris
gpsd
direct kernel GPS
NFC (forks here)
nfcd
NFC daemon core
nfcd-binder-plugin
NFC via Android HAL
kernel NFC driver
via Linux kernel directly
Biometrics (forks here)
biometryd
fingerprint via Android HAL
kernel fingerprint driver
via Linux kernel
Graphics, audio & media servers
Shared core — GPU, audio & camera backend forks per device
Partly forks
Display server (shared core, backend forks)
mir1
display server core
 wayland
display protocol
 xwayland
X11 compatibility
 libdrm
DRM/KMS kernel interface
mir-android2-platform
Mir → Android GPU HAL
 haliumqsgcontext
Qt scene graph for Halium
mesa
open source GPU driver
Audio server (shared core, backend forks)
pulseaudio
audio server core
 pulseaudio-module-bluetooth
Bluetooth audio
pulseaudio-modules-droid
routes to Android audio HAL
 pulseaudio-modules-droid-hidl
HIDL audio HAL variant
 pulseaudio-module-droid-discover
auto-detects droid modules
 audiosystem-passthrough
audio routing service
ALSA kernel driver
direct kernel audio path
Haptics, torch & vibration (shared)
hfd-service
haptic, LED & torch daemon
Media pipeline (shared core, camera backend forks)
media-hub
media backend
 gstreamer1.0
media pipeline core
 gst-plugins-base1.0
base plugins
 gst-plugins-good1.0
good plugins
 gst-plugins-bad1.0
bad plugins
 ffmpeg
codec library
gst-hybris
GStreamer → Android camera HAL
 qtubuntu-camera
Qt camera → Android AAL
v4l2 kernel driver
camera via Linux kernel
Sensors, input & power (shared core, sensor backend forks)
sensorfw-qt5
sensor framework daemon
 libinput
input event processing
 mtdev
multitouch device
 repowerd
power & display mgmt
 upower
battery reporting
 timekeeper
RTC time management
libsensorfw-qt5-hidl
sensors via Android HIDL HAL
kernel IIO drivers
sensors via Linux IIO
HAL bridge & container
Halium only — mainline goes straight to kernel
Halium only
lxc
Android container (Halium) + Waydroid
 platform-api
unified hardware API
 deviceinfo
device properties
libhybris
Linux → Android .so bridge
 libgbinder
Binder IPC library
 libgbinder-radio
radio Binder interface
 bluebinder
Bluetooth Binder bridge
libgrilio
RIL I/O library
 libglibutil
GLib utils for Binder stack
 hybris-usb
USB via Android HAL
Kernel
Vendor Android kernel vs upstream Linux
Both — different
Android vendor kernel
closed HALs, Android drivers, Binder
mainline Linux kernel
upstream drivers, no Android layer
Both device types
Halium device only
Mainline device only