sudo apt install build-essential bc flex bison libssl-dev libelf-dev \
  wget cpio gzip xz-utils

sudo pacman -S base-devel openssl elfutils wget cpio gzip xz

make menuconfig   # 在 Settings 中開啟 "Build static binary"
make -j$(nproc)

sudo apt install gcc-aarch64-linux-gnu
export ARCH=arm64
export CROSS_COMPILE=aarch64-linux-gnu-
# 核心、BusyBox、自研工具均在此環境下編譯