diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index b1075198..07e8ca0b 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -778,8 +778,12 @@ link_directories(
 )
 
 
-set(COMMON_FLAGS -MP -MD -mthumb -mabi=aapcs -ftree-vrp -g3 -ffunction-sections -fdata-sections -fno-strict-aliasing -fno-builtin -fshort-enums -mcpu=cortex-m4 -mfloat-abi=hard -mfpu=fpv4-sp-d16 -fstack-usage -fno-exceptions -fno-non-call-exceptions)
+set(COMMON_FLAGS -MP -MD -mthumb -mabi=aapcs -ftree-vrp -ffunction-sections -fdata-sections -fno-strict-aliasing -fno-builtin -fshort-enums -mcpu=cortex-m4 -mfloat-abi=hard -mfpu=fpv4-sp-d16 -fstack-usage -fno-exceptions -fno-non-call-exceptions)
 set(WARNING_FLAGS -Wall -Wextra -Warray-bounds=2 -Wformat=2 -Wformat-overflow=2 -Wformat-truncation=2 -Wformat-nonliteral -Wno-unused-parameter -Wno-missing-field-initializers -Wno-unknown-pragmas -Wno-expansion-to-defined -Wreturn-type -Werror=return-type)
+set(DEBUG_FLAGS -Og -g3)
+set(RELEASE_FLAGS -Os)
+set(CXX_FLAGS -fno-rtti)
+set(ASM_FLAGS -x assembler-with-cpp)
 add_definitions(-DCONFIG_GPIO_AS_PINRESET)
 add_definitions(-DNIMBLE_CFG_CONTROLLER)
 add_definitions(-DOS_CPUTIME_FREQ)
@@ -856,11 +860,12 @@ add_library(nrf-sdk STATIC ${SDK_SOURCE_FILES})
 target_include_directories(nrf-sdk SYSTEM PUBLIC . ../)
 target_include_directories(nrf-sdk SYSTEM PUBLIC ${INCLUDES_FROM_LIBS})
 target_compile_options(nrf-sdk PRIVATE
-        $<$<AND:$<COMPILE_LANGUAGE:C>,$<CONFIG:DEBUG>>: ${COMMON_FLAGS} -Wno-expansion-to-defined -Og -g3>
-        $<$<AND:$<COMPILE_LANGUAGE:C>,$<CONFIG:RELEASE>>: ${COMMON_FLAGS} -Wno-expansion-to-defined -O3>
-        $<$<AND:$<COMPILE_LANGUAGE:CXX>,$<CONFIG:DEBUG>>: ${COMMON_FLAGS} -Wno-expansion-to-defined -Og -fno-rtti>
-        $<$<AND:$<COMPILE_LANGUAGE:CXX>,$<CONFIG:RELEASE>>: ${COMMON_FLAGS} -Wno-expansion-to-defined -O3 -fno-rtti>
-        $<$<COMPILE_LANGUAGE:ASM>: -MP -MD -x assembler-with-cpp>
+        ${COMMON_FLAGS}
+        $<$<CONFIG:DEBUG>: ${DEBUG_FLAGS}>
+        $<$<CONFIG:RELEASE>: ${RELEASE_FLAGS}>
+        $<$<COMPILE_LANGUAGE:CXX>: ${CXX_FLAGS}>
+        $<$<COMPILE_LANGUAGE:ASM>: ${ASM_FLAGS}>
+        -O3
         )
 
 # NimBLE
@@ -868,11 +873,13 @@ add_library(nimble STATIC ${NIMBLE_SRC} ${TINYCRYPT_SRC})
 target_include_directories(nimble SYSTEM PUBLIC . ../)
 target_include_directories(nimble SYSTEM PUBLIC ${INCLUDES_FROM_LIBS})
 target_compile_options(nimble PRIVATE
-        $<$<AND:$<COMPILE_LANGUAGE:C>,$<CONFIG:DEBUG>>: ${COMMON_FLAGS} -Og -g3 -Wno-unused-but-set-variable -Wno-maybe-uninitialized>
-        $<$<AND:$<COMPILE_LANGUAGE:C>,$<CONFIG:RELEASE>>: ${COMMON_FLAGS} -Os -Wno-unused-but-set-variable -Wno-maybe-uninitialized>
-        $<$<AND:$<COMPILE_LANGUAGE:CXX>,$<CONFIG:DEBUG>>: ${COMMON_FLAGS} -Og -g3 -Wno-unused-but-set-variable -Wno-maybe-uninitialized -fno-rtti>
-        $<$<AND:$<COMPILE_LANGUAGE:CXX>,$<CONFIG:RELEASE>>: ${COMMON_FLAGS} -Os -Wno-unused-but-set-variable -Wno-maybe-uninitialized -fno-rtti>
-        $<$<COMPILE_LANGUAGE:ASM>: -MP -MD -x assembler-with-cpp>
+        ${COMMON_FLAGS}
+        $<$<CONFIG:DEBUG>: ${DEBUG_FLAGS}>
+        $<$<CONFIG:RELEASE>: ${RELEASE_FLAGS}>
+        $<$<COMPILE_LANGUAGE:CXX>: ${CXX_FLAGS}>
+        $<$<COMPILE_LANGUAGE:ASM>: ${ASM_FLAGS}>
+        -Wno-unused-but-set-variable
+        -Wno-maybe-uninitialized
         )
 
 # lvgl
@@ -880,11 +887,11 @@ add_library(lvgl STATIC ${LVGL_SRC})
 target_include_directories(lvgl SYSTEM PUBLIC . ../)
 target_include_directories(lvgl SYSTEM PUBLIC ${INCLUDES_FROM_LIBS})
 target_compile_options(lvgl PRIVATE
-        $<$<AND:$<COMPILE_LANGUAGE:C>,$<CONFIG:DEBUG>>: ${COMMON_FLAGS} -Og -g3>
-        $<$<AND:$<COMPILE_LANGUAGE:C>,$<CONFIG:RELEASE>>: ${COMMON_FLAGS} -Os>
-        $<$<AND:$<COMPILE_LANGUAGE:CXX>,$<CONFIG:DEBUG>>: ${COMMON_FLAGS} -Og -g3 -fno-rtti>
-        $<$<AND:$<COMPILE_LANGUAGE:CXX>,$<CONFIG:RELEASE>>: ${COMMON_FLAGS} -Os -fno-rtti>
-        $<$<COMPILE_LANGUAGE:ASM>: -MP -MD -x assembler-with-cpp>
+        ${COMMON_FLAGS}
+        $<$<CONFIG:DEBUG>: ${DEBUG_FLAGS}>
+        $<$<CONFIG:RELEASE>: ${RELEASE_FLAGS}>
+        $<$<COMPILE_LANGUAGE:CXX>: ${CXX_FLAGS}>
+        $<$<COMPILE_LANGUAGE:ASM>: ${ASM_FLAGS}>
         )
 
 # QCBOR
@@ -911,11 +918,12 @@ add_library(littlefs STATIC ${LITTLEFS_SRC})
 target_include_directories(littlefs SYSTEM PUBLIC . ../)
 target_include_directories(littlefs SYSTEM PUBLIC ${INCLUDES_FROM_LIBS})
 target_compile_options(littlefs PRIVATE
-        $<$<AND:$<COMPILE_LANGUAGE:C>,$<CONFIG:DEBUG>>: ${COMMON_FLAGS} -Wno-unused-function -Og -g3>
-        $<$<AND:$<COMPILE_LANGUAGE:C>,$<CONFIG:RELEASE>>: ${COMMON_FLAGS} -Wno-unused-function -Os>
-        $<$<AND:$<COMPILE_LANGUAGE:CXX>,$<CONFIG:DEBUG>>: ${COMMON_FLAGS} -Wno-unused-function -Og -g3 -fno-rtti>
-        $<$<AND:$<COMPILE_LANGUAGE:CXX>,$<CONFIG:RELEASE>>: ${COMMON_FLAGS} -Wno-unused-function -Os -fno-rtti>
-        $<$<COMPILE_LANGUAGE:ASM>: -MP -MD -x assembler-with-cpp>
+        ${COMMON_FLAGS}
+        $<$<CONFIG:DEBUG>: ${DEBUG_FLAGS}>
+        $<$<CONFIG:RELEASE>: ${RELEASE_FLAGS}>
+        $<$<COMPILE_LANGUAGE:CXX>: ${CXX_FLAGS}>
+        $<$<COMPILE_LANGUAGE:ASM>: ${ASM_FLAGS}>
+        -Wno-unused-function
         )
 
 # Build autonomous binary (without support for bootloader)
@@ -926,11 +934,12 @@ add_executable(${EXECUTABLE_NAME} ${SOURCE_FILES})
 set_target_properties(${EXECUTABLE_NAME} PROPERTIES OUTPUT_NAME ${EXECUTABLE_FILE_NAME})
 target_link_libraries(${EXECUTABLE_NAME} nimble nrf-sdk lvgl littlefs QCBOR infinitime_fonts)
 target_compile_options(${EXECUTABLE_NAME} PUBLIC
-        $<$<AND:$<COMPILE_LANGUAGE:C>,$<CONFIG:DEBUG>>: ${COMMON_FLAGS} ${WARNING_FLAGS} -Og -g3>
-        $<$<AND:$<COMPILE_LANGUAGE:C>,$<CONFIG:RELEASE>>: ${COMMON_FLAGS} ${WARNING_FLAGS} -Os>
-        $<$<AND:$<COMPILE_LANGUAGE:CXX>,$<CONFIG:DEBUG>>: ${COMMON_FLAGS} ${WARNING_FLAGS} -Og -g3 -fno-rtti>
-        $<$<AND:$<COMPILE_LANGUAGE:CXX>,$<CONFIG:RELEASE>>: ${COMMON_FLAGS} ${WARNING_FLAGS} -Os -fno-rtti>
-        $<$<COMPILE_LANGUAGE:ASM>: -MP -MD -x assembler-with-cpp>
+        ${COMMON_FLAGS}
+        ${WARNING_FLAGS}
+        $<$<CONFIG:DEBUG>: ${DEBUG_FLAGS}>
+        $<$<CONFIG:RELEASE>: ${RELEASE_FLAGS}>
+        $<$<COMPILE_LANGUAGE:CXX>: ${CXX_FLAGS}>
+        $<$<COMPILE_LANGUAGE:ASM>: ${ASM_FLAGS}>
         )
 
 set_target_properties(${EXECUTABLE_NAME} PROPERTIES
@@ -960,11 +969,12 @@ add_executable(${EXECUTABLE_MCUBOOT_NAME} ${SOURCE_FILES})
 target_link_libraries(${EXECUTABLE_MCUBOOT_NAME} nimble nrf-sdk lvgl littlefs QCBOR infinitime_fonts)
 set_target_properties(${EXECUTABLE_MCUBOOT_NAME} PROPERTIES OUTPUT_NAME ${EXECUTABLE_MCUBOOT_FILE_NAME})
 target_compile_options(${EXECUTABLE_MCUBOOT_NAME} PUBLIC
-        $<$<AND:$<COMPILE_LANGUAGE:C>,$<CONFIG:DEBUG>>: ${COMMON_FLAGS} ${WARNING_FLAGS} -Og -g3>
-        $<$<AND:$<COMPILE_LANGUAGE:C>,$<CONFIG:RELEASE>>: ${COMMON_FLAGS} ${WARNING_FLAGS} -Os>
-        $<$<AND:$<COMPILE_LANGUAGE:CXX>,$<CONFIG:DEBUG>>: ${COMMON_FLAGS} ${WARNING_FLAGS} -Og -g3 -fno-rtti>
-        $<$<AND:$<COMPILE_LANGUAGE:CXX>,$<CONFIG:RELEASE>>: ${COMMON_FLAGS} ${WARNING_FLAGS} -Os -fno-rtti>
-        $<$<COMPILE_LANGUAGE:ASM>: -MP -MD -x assembler-with-cpp>
+        ${COMMON_FLAGS}
+        ${WARNING_FLAGS}
+        $<$<CONFIG:DEBUG>: ${DEBUG_FLAGS}>
+        $<$<CONFIG:RELEASE>: ${RELEASE_FLAGS}>
+        $<$<COMPILE_LANGUAGE:CXX>: ${CXX_FLAGS}>
+        $<$<COMPILE_LANGUAGE:ASM>: ${ASM_FLAGS}>
         )
 
 set_target_properties(${EXECUTABLE_MCUBOOT_NAME} PROPERTIES
@@ -1002,11 +1012,12 @@ target_link_libraries(${EXECUTABLE_RECOVERY_NAME} nimble nrf-sdk littlefs QCBOR
 set_target_properties(${EXECUTABLE_RECOVERY_NAME} PROPERTIES OUTPUT_NAME ${EXECUTABLE_RECOVERY_FILE_NAME})
 target_compile_definitions(${EXECUTABLE_RECOVERY_NAME} PUBLIC "PINETIME_IS_RECOVERY")
 target_compile_options(${EXECUTABLE_RECOVERY_NAME} PUBLIC
-        $<$<AND:$<COMPILE_LANGUAGE:C>,$<CONFIG:DEBUG>>: ${COMMON_FLAGS} ${WARNING_FLAGS} -Og -g3>
-        $<$<AND:$<COMPILE_LANGUAGE:C>,$<CONFIG:RELEASE>>: ${COMMON_FLAGS} ${WARNING_FLAGS} -Os>
-        $<$<AND:$<COMPILE_LANGUAGE:CXX>,$<CONFIG:DEBUG>>: ${COMMON_FLAGS} ${WARNING_FLAGS} -Og -g3 -fno-rtti>
-        $<$<AND:$<COMPILE_LANGUAGE:CXX>,$<CONFIG:RELEASE>>: ${COMMON_FLAGS} ${WARNING_FLAGS} -Os -fno-rtti>
-        $<$<COMPILE_LANGUAGE:ASM>: -MP -MD -x assembler-with-cpp>
+        ${COMMON_FLAGS}
+        ${WARNING_FLAGS}
+        $<$<CONFIG:DEBUG>: ${DEBUG_FLAGS}>
+        $<$<CONFIG:RELEASE>: ${RELEASE_FLAGS}>
+        $<$<COMPILE_LANGUAGE:CXX>: ${CXX_FLAGS}>
+        $<$<COMPILE_LANGUAGE:ASM>: ${ASM_FLAGS}>
         )
 
 set_target_properties(${EXECUTABLE_RECOVERY_NAME} PROPERTIES
@@ -1033,11 +1044,12 @@ target_link_libraries(${EXECUTABLE_RECOVERY_MCUBOOT_NAME} nimble nrf-sdk littlef
 set_target_properties(${EXECUTABLE_RECOVERY_MCUBOOT_NAME} PROPERTIES OUTPUT_NAME ${EXECUTABLE_RECOVERY_MCUBOOT_FILE_NAME})
 target_compile_definitions(${EXECUTABLE_RECOVERY_MCUBOOT_NAME} PUBLIC "PINETIME_IS_RECOVERY")
 target_compile_options(${EXECUTABLE_RECOVERY_MCUBOOT_NAME} PUBLIC
-        $<$<AND:$<COMPILE_LANGUAGE:C>,$<CONFIG:DEBUG>>: ${COMMON_FLAGS} ${WARNING_FLAGS} -Og -g3>
-        $<$<AND:$<COMPILE_LANGUAGE:C>,$<CONFIG:RELEASE>>: ${COMMON_FLAGS} ${WARNING_FLAGS} -Os>
-        $<$<AND:$<COMPILE_LANGUAGE:CXX>,$<CONFIG:DEBUG>>: ${COMMON_FLAGS} ${WARNING_FLAGS} -Og -g3 -fno-rtti>
-        $<$<AND:$<COMPILE_LANGUAGE:CXX>,$<CONFIG:RELEASE>>: ${COMMON_FLAGS} ${WARNING_FLAGS} -Os -fno-rtti>
-        $<$<COMPILE_LANGUAGE:ASM>: -MP -MD -x assembler-with-cpp>
+        ${COMMON_FLAGS}
+        ${WARNING_FLAGS}
+        $<$<CONFIG:DEBUG>: ${DEBUG_FLAGS}>
+        $<$<CONFIG:RELEASE>: ${RELEASE_FLAGS}>
+        $<$<COMPILE_LANGUAGE:CXX>: ${CXX_FLAGS}>
+        $<$<COMPILE_LANGUAGE:ASM>: ${ASM_FLAGS}>
         )
 
 set_target_properties(${EXECUTABLE_RECOVERY_MCUBOOT_NAME} PROPERTIES
@@ -1071,11 +1083,12 @@ add_executable(${EXECUTABLE_RECOVERYLOADER_NAME} ${RECOVERYLOADER_SOURCE_FILES})
 target_link_libraries(${EXECUTABLE_RECOVERYLOADER_NAME} nrf-sdk QCBOR infinitime_fonts)
 set_target_properties(${EXECUTABLE_RECOVERYLOADER_NAME} PROPERTIES OUTPUT_NAME ${EXECUTABLE_RECOVERYLOADER_FILE_NAME})
 target_compile_options(${EXECUTABLE_RECOVERYLOADER_NAME} PUBLIC
-        $<$<AND:$<COMPILE_LANGUAGE:C>,$<CONFIG:DEBUG>>: ${COMMON_FLAGS} ${WARNING_FLAGS} -Og -g3>
-        $<$<AND:$<COMPILE_LANGUAGE:C>,$<CONFIG:RELEASE>>: ${COMMON_FLAGS} ${WARNING_FLAGS} -Os>
-        $<$<AND:$<COMPILE_LANGUAGE:CXX>,$<CONFIG:DEBUG>>: ${COMMON_FLAGS} ${WARNING_FLAGS} -Og -g3 -fno-rtti>
-        $<$<AND:$<COMPILE_LANGUAGE:CXX>,$<CONFIG:RELEASE>>: ${COMMON_FLAGS} ${WARNING_FLAGS} -Os -fno-rtti>
-        $<$<COMPILE_LANGUAGE:ASM>: -MP -MD -x assembler-with-cpp>
+        ${COMMON_FLAGS}
+        ${WARNING_FLAGS}
+        $<$<CONFIG:DEBUG>: ${DEBUG_FLAGS}>
+        $<$<CONFIG:RELEASE>: ${RELEASE_FLAGS}>
+        $<$<COMPILE_LANGUAGE:CXX>: ${CXX_FLAGS}>
+        $<$<COMPILE_LANGUAGE:ASM>: ${ASM_FLAGS}>
         )
 target_include_directories(${EXECUTABLE_RECOVERYLOADER_NAME} PUBLIC
         $<BUILD_INTERFACE:${CMAKE_BINARY_DIR}/src>
@@ -1105,11 +1118,12 @@ add_executable(${EXECUTABLE_MCUBOOT_RECOVERYLOADER_NAME} ${RECOVERYLOADER_SOURCE
 target_link_libraries(${EXECUTABLE_MCUBOOT_RECOVERYLOADER_NAME} nrf-sdk QCBOR infinitime_fonts)
 set_target_properties(${EXECUTABLE_MCUBOOT_RECOVERYLOADER_NAME} PROPERTIES OUTPUT_NAME ${EXECUTABLE_MCUBOOT_RECOVERYLOADER_FILE_NAME})
 target_compile_options(${EXECUTABLE_MCUBOOT_RECOVERYLOADER_NAME} PUBLIC
-        $<$<AND:$<COMPILE_LANGUAGE:C>,$<CONFIG:DEBUG>>: ${COMMON_FLAGS} ${WARNING_FLAGS} -Og -g3>
-        $<$<AND:$<COMPILE_LANGUAGE:C>,$<CONFIG:RELEASE>>: ${COMMON_FLAGS} ${WARNING_FLAGS} -Os>
-        $<$<AND:$<COMPILE_LANGUAGE:CXX>,$<CONFIG:DEBUG>>: ${COMMON_FLAGS} ${WARNING_FLAGS} -Og -g3 -fno-rtti>
-        $<$<AND:$<COMPILE_LANGUAGE:CXX>,$<CONFIG:RELEASE>>: ${COMMON_FLAGS} ${WARNING_FLAGS} -Os -fno-rtti>
-        $<$<COMPILE_LANGUAGE:ASM>: -MP -MD -x assembler-with-cpp>
+        ${COMMON_FLAGS}
+        ${WARNING_FLAGS}
+        $<$<CONFIG:DEBUG>: ${DEBUG_FLAGS}>
+        $<$<CONFIG:RELEASE>: ${RELEASE_FLAGS}>
+        $<$<COMPILE_LANGUAGE:CXX>: ${CXX_FLAGS}>
+        $<$<COMPILE_LANGUAGE:ASM>: ${ASM_FLAGS}>
         )
 target_include_directories(${EXECUTABLE_MCUBOOT_RECOVERYLOADER_NAME} PUBLIC
         $<BUILD_INTERFACE:${CMAKE_BINARY_DIR}/src>