diff --git a/boot/zephyr/boards/circuitdojo_feather_nrf9160.conf b/boot/zephyr/boards/circuitdojo_feather_nrf9160.conf
index 29d18af..078e390 100644
--- a/boot/zephyr/boards/circuitdojo_feather_nrf9160.conf
+++ b/boot/zephyr/boards/circuitdojo_feather_nrf9160.conf
@@ -3,6 +3,9 @@
 CONFIG_CONSOLE_HANDLER=n
 CONFIG_UART_CONSOLE=n
 
+# Multithreading
+CONFIG_MULTITHREADING=y
+
 # MCUBoot settings
 CONFIG_BOOT_MAX_IMG_SECTORS=256
 
@@ -11,3 +14,6 @@
 CONFIG_BOOT_SERIAL_DETECT_PORT="GPIO_0"
 CONFIG_BOOT_SERIAL_DETECT_PIN=12
 CONFIG_BOOT_SERIAL_DETECT_PIN_VAL=0
+
+# Size of mcuboot partition
+CONFIG_SIZE_OPTIMIZATIONS=y
\ No newline at end of file
diff --git a/boot/zephyr/boards/sparkfun_thing_plus_nrf9160.conf b/boot/zephyr/boards/sparkfun_thing_plus_nrf9160.conf
new file mode 100644
index 0000000..078e390
--- /dev/null
+++ b/boot/zephyr/boards/sparkfun_thing_plus_nrf9160.conf
@@ -0,0 +1,19 @@
+# Disable Zephyr console
+CONFIG_CONSOLE=n
+CONFIG_CONSOLE_HANDLER=n
+CONFIG_UART_CONSOLE=n
+
+# Multithreading
+CONFIG_MULTITHREADING=y
+
+# MCUBoot settings
+CONFIG_BOOT_MAX_IMG_SECTORS=256
+
+# MCUboot serial recovery
+CONFIG_MCUBOOT_SERIAL=y
+CONFIG_BOOT_SERIAL_DETECT_PORT="GPIO_0"
+CONFIG_BOOT_SERIAL_DETECT_PIN=12
+CONFIG_BOOT_SERIAL_DETECT_PIN_VAL=0
+
+# Size of mcuboot partition
+CONFIG_SIZE_OPTIMIZATIONS=y
\ No newline at end of file