Bluetooth: Build Size

[mccaweric]

I am writing a bootloader for the nrf52 that needs to accept OTA firmware updates as well as over uart. I have both working but the bluetooth controller adds about 100k to the build size and that's just too much flash to give up for a bootloader. I have looked online but cant find any recommendations on lowering the build size. If I could get it to be under 52k I think it would be fine, it currently sits at just under 129k.

#current prj.conf
CONFIG_PM=y
CONFIG_SIZE_OPTIMIZATIONS=y
CONFIG_MAIN_STACK_SIZE=10240

CONFIG_MCUBOOT_NRF_CLEANUP_PERIPHERAL=y
CONFIG_MCUBOOT_CLEANUP_ARM_CORE=y
CONFIG_MULTITHREADING=y
CONFIG_STREAM_FLASH=y


CONFIG_BOOT_VALIDATE_SLOT0=n
CONFIG_MCUBOOT_INDICATION_LED=y
CONFIG_SINGLE_APPLICATION_SLOT=y
CONFIG_MCUBOOT_SERIAL=y
CONFIG_BOOT_SERIAL_DETECT_PIN=11
CONFIG_BOOT_SERIAL_DETECT_PIN_VAL=0
CONFIG_BOOT_SIGNATURE_TYPE_NONE=y


CONFIG_FLASH=y
CONFIG_FLASH_MAP=y
CONFIG_NVS=y
CONFIG_FPROTECT=y

CONFIG_CBPRINTF_NANO=y

CONFIG_BT_NUS=y

CONFIG_BT=y

CONFIG_BT_CTLR=y
CONFIG_BT_PERIPHERAL=y
CONFIG_BT_DEBUG_NONE=y
CONFIG_CRYPTO=n
CONFIG_TINYCRYPT=n
CONFIG_BT_DEVICE_NAME="BOOTLOADER"
CONFIG_BT_DEVICE_APPEARANCE=4353
CONFIG_BT_MAX_CONN=1
CONFIG_BT_MAX_PAIRED=1