diff --git a/Android.bp b/Android.bp
new file mode 100644
index 0000000..bb6ecd0
--- /dev/null
+++ b/Android.bp
@@ -0,0 +1,8 @@
+//
+// Copyright (C) 2022 The LineageOS Project
+//
+// SPDX-License-Identifier: Apache-2.0
+//
+
+soong_namespace {
+}
diff --git a/Android.mk b/Android.mk
new file mode 100644
index 0000000..4b7473c
--- /dev/null
+++ b/Android.mk
@@ -0,0 +1,133 @@
+#
+# Copyright (C) 2022 The LineageOS Project
+#
+# SPDX-License-Identifier: Apache-2.0
+#
+
+LOCAL_PATH := $(call my-dir)
+
+ifneq ($(filter cupid zeus,$(TARGET_DEVICE)),)
+
+include $(call all-makefiles-under,$(LOCAL_PATH))
+
+include $(CLEAR_VARS)
+
+# A/B builds require us to create the mount points at compile time.
+FIRMWARE_MOUNT_POINT := $(TARGET_OUT_VENDOR)/firmware_mnt
+$(FIRMWARE_MOUNT_POINT): $(LOCAL_INSTALLED_MODULE)
+	@echo "Creating $(FIRMWARE_MOUNT_POINT)"
+	@mkdir -p $(TARGET_OUT_VENDOR)/firmware_mnt
+
+BT_FIRMWARE_MOUNT_POINT := $(TARGET_OUT_VENDOR)/bt_firmware
+$(BT_FIRMWARE_MOUNT_POINT): $(LOCAL_INSTALLED_MODULE)
+	@echo "Creating $(BT_FIRMWARE_MOUNT_POINT)"
+	@mkdir -p $(TARGET_OUT_VENDOR)/bt_firmware
+
+DSP_MOUNT_POINT := $(TARGET_OUT_VENDOR)/dsp
+$(DSP_MOUNT_POINT): $(LOCAL_INSTALLED_MODULE)
+	@echo "Creating $(DSP_MOUNT_POINT)"
+	@mkdir -p $(TARGET_OUT_VENDOR)/dsp
+
+VM_SYSTEM_MOUNT_POINT := $(TARGET_OUT_VENDOR)/vm-system
+$(VM_SYSTEM_MOUNT_POINT): $(LOCAL_INSTALLED_MODULE)
+	@echo "Creating $(VM_SYSTEM_MOUNT_POINT)"
+	@mkdir -p $(TARGET_OUT_VENDOR)/vm-system
+
+ALL_DEFAULT_INSTALLED_MODULES += \
+    $(FIRMWARE_MOUNT_POINT) \
+    $(BT_FIRMWARE_MOUNT_POINT) \
+    $(DSP_MOUNT_POINT) \
+    $(VM_SYSTEM_MOUNT_POINT)
+
+RFS_MSM_ADSP_SYMLINKS := $(TARGET_OUT_VENDOR)/rfs/msm/adsp/
+$(RFS_MSM_ADSP_SYMLINKS): $(LOCAL_INSTALLED_MODULE)
+	@echo "Creating RFS MSM ADSP folder structure: $@"
+	@rm -rf $@/*
+	@mkdir -p $(dir $@)/readonly/vendor
+	$(hide) ln -sf /data/vendor/tombstones/rfs/lpass $@/ramdumps
+	$(hide) ln -sf /mnt/vendor/persist/rfs/msm/adsp $@/readwrite
+	$(hide) ln -sf /mnt/vendor/persist/rfs/shared $@/shared
+	$(hide) ln -sf /mnt/vendor/persist/hlos_rfs/shared $@/hlos
+	$(hide) ln -sf /vendor/firmware_mnt $@/readonly/firmware
+	$(hide) ln -sf /vendor/firmware $@/readonly/vendor/firmware
+
+RFS_MSM_CDSP_SYMLINKS := $(TARGET_OUT_VENDOR)/rfs/msm/cdsp/
+$(RFS_MSM_CDSP_SYMLINKS): $(LOCAL_INSTALLED_MODULE)
+	@echo "Creating RFS MSM CDSP folder structure: $@"
+	@rm -rf $@/*
+	@mkdir -p $(dir $@)/readonly/vendor
+	$(hide) ln -sf /data/vendor/tombstones/rfs/cdsp $@/ramdumps
+	$(hide) ln -sf /mnt/vendor/persist/rfs/msm/cdsp $@/readwrite
+	$(hide) ln -sf /mnt/vendor/persist/rfs/shared $@/shared
+	$(hide) ln -sf /mnt/vendor/persist/hlos_rfs/shared $@/hlos
+	$(hide) ln -sf /vendor/firmware_mnt $@/readonly/firmware
+	$(hide) ln -sf /vendor/firmware $@/readonly/vendor/firmware
+
+RFS_MSM_MPSS_SYMLINKS := $(TARGET_OUT_VENDOR)/rfs/msm/mpss/
+$(RFS_MSM_MPSS_SYMLINKS): $(LOCAL_INSTALLED_MODULE)
+	@echo "Creating RFS MSM MPSS folder structure: $@"
+	@rm -rf $@/*
+	@mkdir -p $(dir $@)/readonly/vendor
+	$(hide) ln -sf /data/vendor/tombstones/rfs/modem $@/ramdumps
+	$(hide) ln -sf /mnt/vendor/persist/rfs/msm/mpss $@/readwrite
+	$(hide) ln -sf /mnt/vendor/persist/rfs/shared $@/shared
+	$(hide) ln -sf /mnt/vendor/persist/hlos_rfs/shared $@/hlos
+	$(hide) ln -sf /vendor/firmware_mnt $@/readonly/firmware
+	$(hide) ln -sf /vendor/firmware $@/readonly/vendor/firmware
+
+RFS_MSM_SLPI_SYMLINKS := $(TARGET_OUT_VENDOR)/rfs/msm/slpi/
+$(RFS_MSM_SLPI_SYMLINKS): $(LOCAL_INSTALLED_MODULE)
+	@echo "Creating RFS MSM SLPI folder structure: $@"
+	@rm -rf $@/*
+	@mkdir -p $(dir $@)/readonly/vendor
+	$(hide) ln -sf /data/vendor/tombstones/rfs/slpi $@/ramdumps
+	$(hide) ln -sf /mnt/vendor/persist/rfs/msm/slpi $@/readwrite
+	$(hide) ln -sf /mnt/vendor/persist/rfs/shared $@/shared
+	$(hide) ln -sf /mnt/vendor/persist/hlos_rfs/shared $@/hlos
+	$(hide) ln -sf /vendor/firmware_mnt $@/readonly/firmware
+	$(hide) ln -sf /vendor/firmware $@/readonly/vendor/firmware
+
+RFS_MSM_WPSS_SYMLINKS := $(TARGET_OUT_VENDOR)/rfs/msm/wpss/
+$(RFS_MSM_WPSS_SYMLINKS): $(LOCAL_INSTALLED_MODULE)
+	@echo "Creating RFS MSM WPSS folder structure: $@"
+	@rm -rf $@/*
+	@mkdir -p $(dir $@)/readonly/vendor
+	$(hide) ln -sf /data/vendor/tombstones/rfs/wpss $@/ramdumps
+	$(hide) ln -sf /mnt/vendor/persist/rfs/msm/wpss $@/readwrite
+	$(hide) ln -sf /mnt/vendor/persist/rfs/shared $@/shared
+	$(hide) ln -sf /mnt/vendor/persist/hlos_rfs/shared $@/hlos
+	$(hide) ln -sf /vendor/firmware_mnt $@/readonly/firmware
+	$(hide) ln -sf /vendor/firmware $@/readonly/vendor/firmware
+
+ALL_DEFAULT_INSTALLED_MODULES += \
+    $(RFS_MSM_ADSP_SYMLINKS) \
+    $(RFS_MSM_CDSP_SYMLINKS) \
+    $(RFS_MSM_MPSS_SYMLINKS) \
+    $(RFS_MSM_SLPI_SYMLINKS)
+
+FIRMWARE_WLAN_QCA_CLD_SYMLINKS := $(TARGET_OUT_VENDOR)/firmware/wlan/qca_cld/
+$(FIRMWARE_WLAN_QCA_CLD_SYMLINKS): $(LOCAL_INSTALLED_MODULE)
+	@echo "Creating qca_cld wlan firmware symlinks: $@"
+	mkdir -p $@
+	$(hide) ln -sf /vendor/etc/wifi/WCNSS_qcom_cfg.ini $@/WCNSS_qcom_cfg.ini
+
+FIRMWARE_WLAN_QCA_CLD_QCA6490_SYMLINKS := $(TARGET_OUT_VENDOR)/firmware/wlan/qca_cld/qca6490/
+$(FIRMWARE_WLAN_QCA_CLD_QCA6490_SYMLINKS): $(LOCAL_INSTALLED_MODULE)
+	@echo "Creating qca6490 qca_cld wlan firmware symlinks: $@"
+	mkdir -p $@
+	$(hide) ln -sf /vendor/etc/wifi/qca6490/WCNSS_qcom_cfg.ini $@/WCNSS_qcom_cfg.ini
+	$(hide) ln -sf /mnt/vendor/persist/qca6490/wlan_mac.bin $@/wlan_mac.bin
+
+FIRMWARE_WLAN_QCA_CLD_QCA6750_SYMLINKS := $(TARGET_OUT_VENDOR)/firmware/wlan/qca_cld/qca6750/
+$(FIRMWARE_WLAN_QCA_CLD_QCA6750_SYMLINKS): $(LOCAL_INSTALLED_MODULE)
+	@echo "Creating qca6750 qca_cld wlan firmware symlinks: $@"
+	mkdir -p $@
+	$(hide) ln -sf /vendor/etc/wifi/qca6750/WCNSS_qcom_cfg.ini $@/WCNSS_qcom_cfg.ini
+	$(hide) ln -sf /mnt/vendor/persist/qca6750/wlan_mac.bin $@/wlan_mac.bin
+
+ALL_DEFAULT_INSTALLED_MODULES += \
+    $(FIRMWARE_WLAN_QCA_CLD_SYMLINKS) \
+    $(FIRMWARE_WLAN_QCA_CLD_QCA6490_SYMLINKS) \
+    $(FIRMWARE_WLAN_QCA_CLD_QCA6750_SYMLINKS)
+
+endif
diff --git a/BoardConfigCommon.mk b/BoardConfigCommon.mk
new file mode 100644
index 0000000..fab3ec6
--- /dev/null
+++ b/BoardConfigCommon.mk
@@ -0,0 +1,31 @@
+#
+# Copyright (C) 2022 The LineageOS Project
+#
+# SPDX-License-Identifier: Apache-2.0
+#
+
+# Inherit from the proprietary version
+include vendor/xiaomi/sm8450-common/BoardConfigVendor.mk
+
+COMMON_PATH := device/xiaomi/sm8450-common
+
+# Architecture
+TARGET_ARCH := arm64
+TARGET_ARCH_VARIANT := armv8-a-branchprot
+TARGET_CPU_ABI := arm64-v8a
+TARGET_CPU_ABI2 :=
+TARGET_CPU_VARIANT := kryo300
+
+TARGET_2ND_ARCH := arm
+TARGET_2ND_ARCH_VARIANT := armv8-2a
+TARGET_2ND_CPU_ABI := armeabi-v7a
+TARGET_2ND_CPU_ABI2 := armeabi
+TARGET_2ND_CPU_VARIANT := cortex-a75
+
+# Bootloader
+TARGET_BOOTLOADER_BOARD_NAME := taro
+TARGET_NO_BOOTLOADER := true
+
+# Platform
+BOARD_USES_QCOM_HARDWARE := true
+TARGET_BOARD_PLATFORM := taro
diff --git a/common.mk b/common.mk
new file mode 100644
index 0000000..2185c23
--- /dev/null
+++ b/common.mk
@@ -0,0 +1,31 @@
+#
+# Copyright (C) 2020 The LineageOS Project
+#
+# SPDX-License-Identifier: Apache-2.0
+#
+
+# Inherit from those products. Most specific first.
+$(call inherit-product, $(SRC_TARGET_DIR)/product/core_64_bit.mk)
+$(call inherit-product, $(SRC_TARGET_DIR)/product/full_base_telephony.mk)
+
+# Enable project quotas and casefolding for emulated storage without sdcardfs
+$(call inherit-product, $(SRC_TARGET_DIR)/product/emulated_storage.mk)
+
+# Enforce generic ramdisk allow list
+$(call inherit-product, $(SRC_TARGET_DIR)/product/generic_ramdisk.mk)
+
+# Enable updating of APEXes
+$(call inherit-product, $(SRC_TARGET_DIR)/product/updatable_apex.mk)
+
+# Enable virtual AB with vendor ramdisk
+$(call inherit-product, $(SRC_TARGET_DIR)/product/virtual_ab_ota/launch_with_vendor_ramdisk.mk)
+
+# Setup dalvik vm configs
+$(call inherit-product, frameworks/native/build/phone-xhdpi-6144-dalvik-heap.mk)
+
+# Inherit from the proprietary version
+$(call inherit-product, vendor/xiaomi/sm8450-common/sm8450-common-vendor.mk)
+
+# API
+PRODUCT_SHIPPING_API_LEVEL := 31
+BOARD_SHIPPING_API_LEVEL := 31
diff --git a/extract-files.sh b/extract-files.sh
new file mode 100755
index 0000000..84a248a
--- /dev/null
+++ b/extract-files.sh
@@ -0,0 +1,81 @@
+#!/bin/bash
+#
+# Copyright (C) 2016 The CyanogenMod Project
+# Copyright (C) 2017-2020 The LineageOS Project
+#
+# SPDX-License-Identifier: Apache-2.0
+#
+
+set -e
+
+# Load extract_utils and do some sanity checks
+MY_DIR="${BASH_SOURCE%/*}"
+if [[ ! -d "${MY_DIR}" ]]; then MY_DIR="${PWD}"; fi
+
+ANDROID_ROOT="${MY_DIR}/../../.."
+
+HELPER="${ANDROID_ROOT}/tools/extract-utils/extract_utils.sh"
+if [ ! -f "${HELPER}" ]; then
+    echo "Unable to find helper script at ${HELPER}"
+    exit 1
+fi
+source "${HELPER}"
+
+# Default to sanitizing the vendor folder before extraction
+CLEAN_VENDOR=true
+
+ONLY_COMMON=
+ONLY_TARGET=
+KANG=
+SECTION=
+
+while [ "${#}" -gt 0 ]; do
+    case "${1}" in
+        --only-common )
+                ONLY_COMMON=true
+                ;;
+        --only-target )
+                ONLY_TARGET=true
+                ;;
+        -n | --no-cleanup )
+                CLEAN_VENDOR=false
+                ;;
+        -k | --kang )
+                KANG="--kang"
+                ;;
+        -s | --section )
+                SECTION="${2}"; shift
+                CLEAN_VENDOR=false
+                ;;
+        * )
+                SRC="${1}"
+                ;;
+    esac
+    shift
+done
+
+if [ -z "${SRC}" ]; then
+    SRC="adb"
+fi
+
+function blob_fixup() {
+    case "${1}" in
+    esac
+}
+
+if [ -z "${ONLY_TARGET}" ]; then
+    # Initialize the helper for common device
+    setup_vendor "${DEVICE_COMMON}" "${VENDOR_COMMON:-$VENDOR}" "${ANDROID_ROOT}" true "${CLEAN_VENDOR}"
+
+    extract "${MY_DIR}/proprietary-files.txt" "${SRC}" "${KANG}" --section "${SECTION}"
+fi
+
+if [ -z "${ONLY_COMMON}" ] && [ -s "${MY_DIR}/../../${VENDOR}/${DEVICE}/proprietary-files.txt" ]; then
+    # Reinitialize the helper for device
+    source "${MY_DIR}/../../${VENDOR}/${DEVICE}/extract-files.sh"
+    setup_vendor "${DEVICE}" "${VENDOR}" "${ANDROID_ROOT}" false "${CLEAN_VENDOR}"
+
+    extract "${MY_DIR}/../../${VENDOR}/${DEVICE}/proprietary-files.txt" "${SRC}" "${KANG}" --section "${SECTION}"
+fi
+
+"${MY_DIR}/setup-makefiles.sh"
diff --git a/proprietary-files.txt b/proprietary-files.txt
new file mode 100644
index 0000000..e69de29
diff --git a/setup-makefiles.sh b/setup-makefiles.sh
new file mode 100755
index 0000000..e10b66c
--- /dev/null
+++ b/setup-makefiles.sh
@@ -0,0 +1,48 @@
+#!/bin/bash
+#
+# Copyright (C) 2016 The CyanogenMod Project
+# Copyright (C) 2017-2020 The LineageOS Project
+#
+# SPDX-License-Identifier: Apache-2.0
+#
+
+set -e
+
+# Load extract_utils and do some sanity checks
+MY_DIR="${BASH_SOURCE%/*}"
+if [[ ! -d "${MY_DIR}" ]]; then MY_DIR="${PWD}"; fi
+
+ANDROID_ROOT="${MY_DIR}/../../.."
+
+HELPER="${ANDROID_ROOT}/tools/extract-utils/extract_utils.sh"
+if [ ! -f "${HELPER}" ]; then
+    echo "Unable to find helper script at ${HELPER}"
+    exit 1
+fi
+source "${HELPER}"
+
+# Initialize the helper for common
+setup_vendor "${DEVICE_COMMON}" "${VENDOR_COMMON:-$VENDOR}" "${ANDROID_ROOT}" true
+
+# Warning headers and guards
+write_headers "cupid zeus"
+
+# The standard common blobs
+write_makefiles "${MY_DIR}/proprietary-files.txt" true
+
+# Finish
+write_footers
+
+if [ -s "${MY_DIR}/../../${VENDOR}/${DEVICE}/proprietary-files.txt" ]; then
+    # Reinitialize the helper for device
+    setup_vendor "${DEVICE}" "${VENDOR}" "${ANDROID_ROOT}" false
+
+    # Warning headers and guards
+    write_headers
+
+    # The standard device blobs
+    write_makefiles "${MY_DIR}/../../${VENDOR}/${DEVICE}/proprietary-files.txt" true
+
+    # Finish
+    write_footers
+fi