diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index 00be3c87c9..64b7ffbd66 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -778,7 +778,12 @@ link_directories(
 )
 
 
-set(COMMON_FLAGS -MP -MD -mthumb -mabi=aapcs -Wall -Wextra -Warray-bounds=2 -Wformat=2 -Wformat-overflow=2 -Wformat-truncation=2 -Wformat-nonliteral -ftree-vrp -Wno-unused-parameter -Wno-missing-field-initializers -Wno-unknown-pragmas -Wno-expansion-to-defined -g3 -ffunction-sections -fdata-sections -fno-strict-aliasing -fno-builtin -fshort-enums -mcpu=cortex-m4 -mfloat-abi=hard -mfpu=fpv4-sp-d16 -Wreturn-type -Werror=return-type -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)
@@ -843,11 +848,11 @@ endif()
 
 add_subdirectory(displayapp/fonts)
 target_compile_options(infinitime_fonts PUBLIC
-        $<$<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}>
         )
 
 # NRF SDK
@@ -855,11 +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
@@ -867,11 +873,11 @@ 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}>
         )
 
 # lvgl
@@ -879,11 +885,11 @@ 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
@@ -900,9 +906,11 @@ target_compile_definitions(QCBOR PUBLIC QCBOR_DISABLE_UNCOMMON_TAGS)
 target_compile_definitions(QCBOR PUBLIC USEFULBUF_CONFIG_LITTLE_ENDIAN)
 set_target_properties(QCBOR PROPERTIES LINKER_LANGUAGE C)
 target_compile_options(QCBOR PRIVATE
-        $<$<AND:$<COMPILE_LANGUAGE:C>,$<CONFIG:DEBUG>>: ${COMMON_FLAGS} -O0 -g3>
-        $<$<AND:$<COMPILE_LANGUAGE:C>,$<CONFIG:RELEASE>>: ${COMMON_FLAGS} -O3>
-        $<$<COMPILE_LANGUAGE:ASM>: -MP -MD -x assembler-with-cpp>
+        ${COMMON_FLAGS}
+        $<$<CONFIG:DEBUG>: ${DEBUG_FLAGS}>
+        $<$<CONFIG:RELEASE>: ${RELEASE_FLAGS}>
+        $<$<COMPILE_LANGUAGE:ASM>: ${ASM_FLAGS}>
+        -O3
         )
 
 # LITTLEFS_SRC
@@ -910,11 +918,11 @@ 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}>
         )
 
 # Build autonomous binary (without support for bootloader)
@@ -925,11 +933,12 @@ 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} -Wextra -Wformat -Wno-missing-field-initializers -Wno-unused-parameter -Og -g3>
-        $<$<AND:$<COMPILE_LANGUAGE:C>,$<CONFIG:RELEASE>>: ${COMMON_FLAGS} -Wextra -Wformat -Wno-missing-field-initializers -Wno-unused-parameter -Os>
-        $<$<AND:$<COMPILE_LANGUAGE:CXX>,$<CONFIG:DEBUG>>: ${COMMON_FLAGS} -Wextra -Wformat -Wno-missing-field-initializers -Wno-unused-parameter -Og -g3 -fno-rtti>
-        $<$<AND:$<COMPILE_LANGUAGE:CXX>,$<CONFIG:RELEASE>>: ${COMMON_FLAGS} -Wextra -Wformat -Wno-missing-field-initializers -Wno-unused-parameter -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(${EXECUTABLE_NAME} PROPERTIES
@@ -959,11 +968,12 @@ add_executable(${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} -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}
+        ${WARNING_FLAGS}
+        $<$<CONFIG:DEBUG>: ${DEBUG_FLAGS}>
+        $<$<CONFIG:RELEASE>: ${RELEASE_FLAGS}>
+        $<$<COMPILE_LANGUAGE:CXX>: ${CXX_FLAGS}>
+        $<$<COMPILE_LANGUAGE:ASM>: ${ASM_FLAGS}>
         )
 
 set_target_properties(${EXECUTABLE_MCUBOOT_NAME} PROPERTIES
@@ -1001,11 +1011,12 @@ target_link_libraries(${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} -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}
+        ${WARNING_FLAGS}
+        $<$<CONFIG:DEBUG>: ${DEBUG_FLAGS}>
+        $<$<CONFIG:RELEASE>: ${RELEASE_FLAGS}>
+        $<$<COMPILE_LANGUAGE:CXX>: ${CXX_FLAGS}>
+        $<$<COMPILE_LANGUAGE:ASM>: ${ASM_FLAGS}>
         )
 
 set_target_properties(${EXECUTABLE_RECOVERY_NAME} PROPERTIES
@@ -1032,11 +1043,12 @@ target_link_libraries(${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} -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}
+        ${WARNING_FLAGS}
+        $<$<CONFIG:DEBUG>: ${DEBUG_FLAGS}>
+        $<$<CONFIG:RELEASE>: ${RELEASE_FLAGS}>
+        $<$<COMPILE_LANGUAGE:CXX>: ${CXX_FLAGS}>
+        $<$<COMPILE_LANGUAGE:ASM>: ${ASM_FLAGS}>
         )
 
 set_target_properties(${EXECUTABLE_RECOVERY_MCUBOOT_NAME} PROPERTIES
@@ -1070,11 +1082,12 @@ add_executable(${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} -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}
+        ${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>
@@ -1104,11 +1117,12 @@ 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} -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}
+        ${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>