Hides Android emulator artifacts from apps, using kernel rules rather than hooks.

Status: early, but measured end to end. Tested on one reference device, a rooted Android 16 Pixel 9 x86_64 AVD (Android Studio emulator). It depends on the requirements below, and some apps need a per-app setting. Read LIMITATIONS.md before installing.

Apps can tell an emulator from a phone. On the reference device with nothing installed, a detector finds 12 clear signals and 7 more worth reviewing: the build fingerprint says sdk_gphone64_x86_64, /dev/goldfish_pipe_dprctd is open in the process, the ARM translation layer is loaded, and 111 system properties mention the emulator.

Existing modules fix this by hooking into every app and rewriting what it reads. That is detectable: compare a result from the C library against the same result from a raw syscall and the two disagree. Detectors run that comparison today.

NoEmulator ships rules instead. The kernel answers both paths identically, so there is nothing to compare. Nothing on disk is edited, so there is no edit mark to find.

• Build identity: the build properties name a Pixel 8 coherently: fingerprint, device, build id and every partition's copy agree.
• Emulator properties: deleted, or given a Pixel 8 value.
• Emulator device nodes and the gralloc mapper: redirected to neutral names, so an app's file descriptors and memory map carry no goldfish or ranchu. The device is the same, so graphics keep working.
• GPU driver names: the Vulkan and EGL drivers are presented under the name mali.
• The ARM native bridge: removed by default, so ARM-only apps break unless you keep it (LIMITATIONS.md).

• susfs4ksu-lkm-x64 v0.0.7 or later installed and loaded. NoEmulator does not bundle it and refuses to install without it.
• x86_64. The install aborts on other architectures.
• KernelSU-Next, which loads the susfs kernel module.
• NoMount, recommended.

See LIMITATIONS.md: the GL renderer until you name the app, the x86_64 hardware, the ARM translator when ARM apps are on, and a few more.

The WebUI covers the common choices: open NoEmulator in the KernelSU manager. Its Options tab has Run ARM apps and Sync the host clipboard; its ANGLE tab hides the GL renderer per app (ANGLE.md).

Anything else goes in the user config, /data/adb/noemulator-user.conf, which updates keep and uninstall removes. It takes the same directives as module/artifacts.conf, which documents each one in its comments. A bad line stops every rule from applying, so check a change first:

sh module/lib/generate_rules.sh module/artifacts.conf /data/adb/noemulator-user.conf

Tap Action on NoEmulator's card in the KernelSU manager, or Export for a bug report on the WebUI's Log page. Either saves noemulator-logs-<UTC time>.txt to /sdcard/Download. It holds the versions of NoEmulator, the kernel, Android and ksud; the installed modules; the last boot's apply.log; the user config; the susfs redirect list; and the emulator properties still set. Values of properties named for a timezone, an ADB key, a serial or a guid are replaced with redacted. Times are UTC. Read the file, then attach it to a bug report.

GPL-3.0. See LICENSE.