android-env-chrootenv:dil3mm4@nixos:~/descendant$ build                                                                     [48/1972]

You're building on Linux

Build menu... pick a combo:
     1. arm-a-gapps
     2. arm-a-vanilla
     3. arm-ab-gapps
     4. arm-ab-vanilla
     5. arm64-a-gapps
     6. arm64-a-vanilla
     7. arm64-ab-gapps
     8. arm64-ab-vanilla

Which would you like?: 6


You're building on Linux

Lunch menu... pick a combo:
     1. aosp_arm-eng
     2. aosp_arm64-eng
     3. aosp_mips-eng
     4. aosp_mips64-eng
     5. aosp_x86-eng
     6. aosp_x86_64-eng
     7. uml-userdebug

Which would you like? [aosp_arm-eng]
============================================
PLATFORM_VERSION_CODENAME=REL
PLATFORM_VERSION=9
TARGET_PRODUCT=aosp_arm
TARGET_BUILD_VARIANT=eng
TARGET_BUILD_TYPE=release
TARGET_ARCH=arm
TARGET_ARCH_VARIANT=armv7-a-neon
TARGET_CPU_VARIANT=generic
HOST_ARCH=x86_64
HOST_2ND_ARCH=x86
HOST_OS=linux
HOST_OS_EXTRA=Linux-4.19.15-x86_64-NixOS-18.09.1922.97e0d53d669-(Jellyfish)
HOST_CROSS_OS=windows
HOST_CROSS_ARCH=x86
HOST_CROSS_2ND_ARCH=x86_64
HOST_BUILD_TYPE=release
BUILD_ID=PQ1A.190105.004
OUT_DIR=out
============================================