You can check reference of used keyword here.
conquerOS Official Devices have to complete following requirements:
- The device have to be ARM64 Based.
- All devices MUST support audio playback for media content.
- Phones MUST support in-call audio.
- Phones MUST support speaker audio.
- Tablet devices capable of in-call audio/speaker audio MUST support in-call/speaker audio.
- Devices SHOULD support any additional audio configuration inherent to their device (eg. echo cancellation, extra mics, etc).
- All devices MUST support any other audio output supported by their stock OS (eg. headphone jack, USB-C, BT).
- All devices with RIL supported in their stock OS MUST support RIL for phone calls & data.
- All devices with RIL supported in their stock OS MUST support emergency calling with a SIM inserted (112/911).
- Data-only devices (defined as devices that have a RIL but do not support telephony stack due to hardware/firmware restrictions) are EXEMPTED from phone & emergency dialing requirements.
- All devices with Wi-Fi supported in their stock OS MUST support Wi-Fi.
- All devices with Wi-Fi MUST report same MAC address as on stock OS.
- All devices with Wi-Fi hotspot capabilities MUST support Wi-Fi tethering.
- All devices with a USB port MUST support file access via MTP.
- All devices with USB tethering supported on their stock OS MUST support USB tethering.
- All devices with a USB port & Data SHOULD support USB tethering.
- All devices with GPS supported in their stock OS MUST support GPS.
- All devices with Camera supported in their stock OS MUST support Camera, in both front facing and rear camera configurations.
- All devices with Dual (or more) Rear Cameras SHOULD support all rear cameras.
- All devices with Dual (or more) Front Facing Cameras SHOULD support all front cameras.
- All Camera HAL versions accessible with the device's Camera HAL MUST comply with the Camera and Video Recording requirements.
- All devices with Video Recording supported in their stock OS MUST support Video Recording, in both front facing and rear camera configurations.
- All devices with a Fingerprint Sensor MUST support the Fingerprint Sensor if the stock OS supports it with Marshmallow or higher Android versions.
- All devices with a Fingerprint Sensor SHOULD support the Fingerprint Sensor if the stock OS supports it for all other Android versions.
- All devices with an accelerometer MUST support the accelerometer.
- All devices with a gyroscope MUST support the gyroscope.
- All devices with a proximity sensor MUST support the proximity sensor.
- All devices with a light sensor MUST support the light sensor.
- All other sensors supported by a device’s stock OS SHOULD be supported.
- All devices MUST be configured for SELinux Enforcing. Exceptions MAY be made for this.
- All commits MUST have proper authorship to the author of the commits.
- If your build is deemed unstable by the team you may not be allowed to maintain officially.
- Exceptions MAY be made for some of these mentioned requirements.
This document uses work from LineageOS device support requirements which is licensed under CC-BY-3.0, some modifications were made to it.