diff --git a/SConstruct b/SConstruct
index 13a698c81..67eac3825 100644
--- a/SConstruct
+++ b/SConstruct
@@ -43,6 +43,7 @@ distenv = coreenv.Clone(
         "jflash",
     ],
     ENV=os.environ,
+    UPDATE_BUNDLE_DIR="dist/${DIST_DIR}/f${TARGET_HW}-update-${DIST_SUFFIX}",
 )
 
 firmware_env = distenv.AddFwProject(
@@ -140,21 +141,28 @@ distenv.Default(basic_dist)
 dist_dir = distenv.GetProjetDirName()
 fap_dist = [
     distenv.Install(
-        f"#/dist/{dist_dir}/apps/debug_elf",
-        firmware_env["FW_EXTAPPS"]["debug"].values(),
+        distenv.Dir(f"#/dist/{dist_dir}/apps/debug_elf"),
+        list(
+            app_artifact.debug
+            for app_artifact in firmware_env["FW_EXTAPPS"].applications.values()
+        ),
     ),
-    *(
-        distenv.Install(f"#/dist/{dist_dir}/apps/{dist_entry[0]}", dist_entry[1])
-        for dist_entry in firmware_env["FW_EXTAPPS"]["dist"].values()
+    distenv.Install(
+        f"#/dist/{dist_dir}/apps",
+        "#/assets/resources/apps",
     ),
 ]
-Depends(fap_dist, firmware_env["FW_EXTAPPS"]["validators"].values())
+Depends(
+    fap_dist,
+    list(
+        app_artifact.validator
+        for app_artifact in firmware_env["FW_EXTAPPS"].applications.values()
+    ),
+)
 Alias("fap_dist", fap_dist)
 # distenv.Default(fap_dist)
 
-distenv.Depends(
-    firmware_env["FW_RESOURCES"], firmware_env["FW_EXTAPPS"]["resources_dist"]
-)
+distenv.Depends(firmware_env["FW_RESOURCES"], firmware_env["FW_EXTAPPS"].resources_dist)
 
 
 # Target for bundling core2 package for qFlipper
@@ -192,6 +200,7 @@ firmware_debug = distenv.PhonyTarget(
     source=firmware_env["FW_ELF"],
     GDBOPTS="${GDBOPTS_BASE}",
     GDBREMOTE="${OPENOCD_GDB_PIPE}",
+    FBT_FAP_DEBUG_ELF_ROOT=firmware_env.subst("$FBT_FAP_DEBUG_ELF_ROOT"),
 )
 distenv.Depends(firmware_debug, firmware_flash)
 
@@ -201,6 +210,7 @@ distenv.PhonyTarget(
     source=firmware_env["FW_ELF"],
     GDBOPTS="${GDBOPTS_BASE} ${GDBOPTS_BLACKMAGIC}",
     GDBREMOTE="${BLACKMAGIC_ADDR}",
+    FBT_FAP_DEBUG_ELF_ROOT=firmware_env.subst("$FBT_FAP_DEBUG_ELF_ROOT"),
 )
 
 # Debug alien elf
@@ -209,7 +219,7 @@ distenv.PhonyTarget(
     "${GDBPYCOM}",
     GDBOPTS="${GDBOPTS_BASE}",
     GDBREMOTE="${OPENOCD_GDB_PIPE}",
-    GDBPYOPTS='-ex "source debug/PyCortexMDebug/PyCortexMDebug.py" ',
+    GDBPYOPTS='-ex "source ${FBT_DEBUG_DIR}/PyCortexMDebug/PyCortexMDebug.py" ',
 )
 
 distenv.PhonyTarget(
diff --git a/applications/main/bad_usb/application.fam b/applications/main/bad_usb/application.fam
index 98472c1e4..d068bc8a2 100644
--- a/applications/main/bad_usb/application.fam
+++ b/applications/main/bad_usb/application.fam
@@ -14,4 +14,5 @@ App(
     fap_category="Main",
     fap_icon="badusb_10px.png",
     fap_icon_assets="images",
+    fap_libs=["assets"],
 )
diff --git a/applications/main/bad_usb/bad_usb_script.c b/applications/main/bad_usb/bad_usb_script.c
index 9bb5f465e..4d5987783 100644
--- a/applications/main/bad_usb/bad_usb_script.c
+++ b/applications/main/bad_usb/bad_usb_script.c
@@ -347,10 +347,6 @@ static int32_t
         furi_hal_hid_kb_release(key);
         return (0);
     }
-    if(error != NULL) {
-        strncpy(error, "Unknown error", error_len);
-    }
-    return SCRIPT_STATE_ERROR;
 }
 
 static bool ducky_set_usb_id(BadUsbScript* bad_usb, const char* line) {
@@ -679,7 +675,7 @@ static void bad_usb_script_set_default_keyboard_layout(BadUsbScript* bad_usb) {
 BadUsbScript* bad_usb_script_open(FuriString* file_path) {
     furi_assert(file_path);
 
-    BadUsbScript* bad_usb = malloc(sizeof(BadUsbScript));
+    BadUsbScript* bad_usb = malloc(sizeof(BadUsbScript)); //-V773
     bad_usb->file_path = furi_string_alloc();
     furi_string_set(bad_usb->file_path, file_path);
     bad_usb_script_set_default_keyboard_layout(bad_usb);
diff --git a/applications/main/fap_loader/fap_loader_app.c b/applications/main/fap_loader/fap_loader_app.c
index bffb0899f..71d10341f 100644
--- a/applications/main/fap_loader/fap_loader_app.c
+++ b/applications/main/fap_loader/fap_loader_app.c
@@ -168,7 +168,7 @@ static bool fap_loader_select_app(FapLoader* loader) {
 }
 
 static FapLoader* fap_loader_alloc(const char* path) {
-    FapLoader* loader = malloc(sizeof(FapLoader));
+    FapLoader* loader = malloc(sizeof(FapLoader)); //-V773
 
     char* tmp = malloc(strlen(path) + 1);
     strcpy(tmp, path);
diff --git a/applications/main/gpio/application.fam b/applications/main/gpio/application.fam
index ae666cdbd..8c6fa3897 100644
--- a/applications/main/gpio/application.fam
+++ b/applications/main/gpio/application.fam
@@ -11,4 +11,5 @@ App(
     fap_icon="gpioIcon.png",
     fap_category="Main",
     fap_icon_assets="images",
+    fap_libs=["assets"],
 )
diff --git a/applications/main/gpio/usb_uart_bridge.c b/applications/main/gpio/usb_uart_bridge.c
index a5caceafa..a1ab40329 100644
--- a/applications/main/gpio/usb_uart_bridge.c
+++ b/applications/main/gpio/usb_uart_bridge.c
@@ -184,7 +184,7 @@ static int32_t usb_uart_worker(void* context) {
     while(1) {
         uint32_t events =
             furi_thread_flags_wait(WORKER_ALL_RX_EVENTS, FuriFlagWaitAny, FuriWaitForever);
-        furi_check((events & FuriFlagError) == 0);
+        furi_check(!(events & FuriFlagError));
         if(events & WorkerEvtStop) break;
         if(events & WorkerEvtRxDone) {
             size_t len = furi_stream_buffer_receive(
@@ -288,7 +288,7 @@ static int32_t usb_uart_tx_thread(void* context) {
     while(1) {
         uint32_t events =
             furi_thread_flags_wait(WORKER_ALL_TX_EVENTS, FuriFlagWaitAny, FuriWaitForever);
-        furi_check((events & FuriFlagError) == 0);
+        furi_check(!(events & FuriFlagError));
         if(events & WorkerEvtTxStop) break;
         if(events & WorkerEvtCdcRx) {
             furi_check(furi_mutex_acquire(usb_uart->usb_mutex, FuriWaitForever) == FuriStatusOk);
diff --git a/applications/main/ibutton/application.fam b/applications/main/ibutton/application.fam
index 6d98b75a5..fc3333ae7 100644
--- a/applications/main/ibutton/application.fam
+++ b/applications/main/ibutton/application.fam
@@ -14,4 +14,5 @@ App(
     fap_icon="iBIcon.png",
     fap_category="Main",
     fap_icon_assets="images",
+    fap_libs=["assets"],
 )
diff --git a/applications/main/infrared/application.fam b/applications/main/infrared/application.fam
index 1270c5846..405224d80 100644
--- a/applications/main/infrared/application.fam
+++ b/applications/main/infrared/application.fam
@@ -15,4 +15,5 @@ App(
     fap_category="Main",
     fap_icon="ir_10px.png",
     fap_icon_assets="images",
+    fap_libs=["assets"],
 )
diff --git a/applications/main/lfrfid/application.fam b/applications/main/lfrfid/application.fam
index ccffcb933..cb2669da5 100644
--- a/applications/main/lfrfid/application.fam
+++ b/applications/main/lfrfid/application.fam
@@ -15,12 +15,5 @@ App(
     fap_category="Main",
     fap_icon="125_10px.png",
     fap_icon_assets="images",
-)
-
-App(
-    appid="lfrfid_start",
-    apptype=FlipperAppType.STARTUP,
-    entry_point="lfrfid_on_system_start",
-    requires=["lfrfid"],
-    order=50,
+    fap_libs=["assets"],
 )
diff --git a/applications/main/lfrfid/lfrfid.c b/applications/main/lfrfid/lfrfid.c
index 513227306..d391c5e89 100644
--- a/applications/main/lfrfid/lfrfid.c
+++ b/applications/main/lfrfid/lfrfid.c
@@ -32,7 +32,7 @@ static void rpc_command_callback(RpcAppSystemEvent rpc_event, void* context) {
 }
 
 static LfRfid* lfrfid_alloc() {
-    LfRfid* lfrfid = malloc(sizeof(LfRfid));
+    LfRfid* lfrfid = malloc(sizeof(LfRfid)); //-V773
 
     lfrfid->storage = furi_record_open(RECORD_STORAGE);
     lfrfid->dialogs = furi_record_open(RECORD_DIALOGS);
diff --git a/applications/main/nfc/scenes/nfc_scene_mf_classic_read_success.c b/applications/main/nfc/scenes/nfc_scene_mf_classic_read_success.c
index ae31e92cc..444c9a540 100644
--- a/applications/main/nfc/scenes/nfc_scene_mf_classic_read_success.c
+++ b/applications/main/nfc/scenes/nfc_scene_mf_classic_read_success.c
@@ -24,7 +24,7 @@ void nfc_scene_mf_classic_read_success_on_enter(void* context) {
     widget_add_button_element(
         widget, GuiButtonTypeRight, "More", nfc_scene_mf_classic_read_success_widget_callback, nfc);
 
-    FuriString* temp_str;
+    FuriString* temp_str = NULL;
     if(furi_string_size(nfc->dev->dev_data.parsed_data)) {
         temp_str = furi_string_alloc_set(nfc->dev->dev_data.parsed_data);
     } else {
diff --git a/applications/main/nfc/scenes/nfc_scene_mf_ultralight_read_success.c b/applications/main/nfc/scenes/nfc_scene_mf_ultralight_read_success.c
index 63bffbf36..cb5ccd6e8 100644
--- a/applications/main/nfc/scenes/nfc_scene_mf_ultralight_read_success.c
+++ b/applications/main/nfc/scenes/nfc_scene_mf_ultralight_read_success.c
@@ -31,7 +31,7 @@ void nfc_scene_mf_ultralight_read_success_on_enter(void* context) {
         nfc_scene_mf_ultralight_read_success_widget_callback,
         nfc);
 
-    FuriString* temp_str;
+    FuriString* temp_str = NULL;
     if(furi_string_size(nfc->dev->dev_data.parsed_data)) {
         temp_str = furi_string_alloc_set(nfc->dev->dev_data.parsed_data);
     } else {
diff --git a/applications/main/subghz/subghz_i.c b/applications/main/subghz/subghz_i.c
index 41cda3bba..2555e6b5e 100644
--- a/applications/main/subghz/subghz_i.c
+++ b/applications/main/subghz/subghz_i.c
@@ -520,12 +520,6 @@ bool subghz_path_is_file(FuriString* path) {
 }
 
 uint32_t subghz_random_serial(void) {
-    static bool rand_generator_inited = false;
-
-    if(!rand_generator_inited) {
-        srand(DWT->CYCCNT);
-        rand_generator_inited = true;
-    }
     return (uint32_t)rand();
 }
 
diff --git a/applications/main/u2f/application.fam b/applications/main/u2f/application.fam
index df823e768..d2e695a3f 100644
--- a/applications/main/u2f/application.fam
+++ b/applications/main/u2f/application.fam
@@ -14,4 +14,5 @@ App(
     fap_icon="U2FIcon.png",
     fap_category="Main",
     fap_icon_assets="images",
+    fap_libs=["assets"],
 )
diff --git a/applications/main/u2f/u2f_hid.c b/applications/main/u2f/u2f_hid.c
index 4922d6a5a..b6e86384d 100644
--- a/applications/main/u2f/u2f_hid.c
+++ b/applications/main/u2f/u2f_hid.c
@@ -203,7 +203,7 @@ static int32_t u2f_hid_worker(void* context) {
             WorkerEvtStop | WorkerEvtConnect | WorkerEvtDisconnect | WorkerEvtRequest,
             FuriFlagWaitAny,
             FuriWaitForever);
-        furi_check((flags & FuriFlagError) == 0);
+        furi_check(!(flags & FuriFlagError));
         if(flags & WorkerEvtStop) break;
         if(flags & WorkerEvtConnect) {
             u2f_set_state(u2f_hid->u2f_instance, 1);
diff --git a/applications/plugins/snake_game/snake_game.c b/applications/plugins/snake_game/snake_game.c
index cfc92e443..362e4f1bf 100644
--- a/applications/plugins/snake_game/snake_game.c
+++ b/applications/plugins/snake_game/snake_game.c
@@ -294,7 +294,6 @@ static void
 
 int32_t snake_game_app(void* p) {
     UNUSED(p);
-    srand(DWT->CYCCNT);
 
     FuriMessageQueue* event_queue = furi_message_queue_alloc(8, sizeof(SnakeEvent));
 
diff --git a/applications/plugins/weather_station/protocols/ambient_weather.c b/applications/plugins/weather_station/protocols/ambient_weather.c
index 07f5330fc..5fede684e 100644
--- a/applications/plugins/weather_station/protocols/ambient_weather.c
+++ b/applications/plugins/weather_station/protocols/ambient_weather.c
@@ -200,7 +200,6 @@ void ws_protocol_decoder_ambient_weather_feed(void* context, bool level, uint32_
            ((instance->decoder.decode_data & AMBIENT_WEATHER_PACKET_HEADER_MASK) ==
             AMBIENT_WEATHER_PACKET_HEADER_2)) {
             if(ws_protocol_ambient_weather_check_crc(instance)) {
-                instance->decoder.decode_data = instance->decoder.decode_data;
                 instance->generic.data = instance->decoder.decode_data;
                 instance->generic.data_count_bit =
                     ws_protocol_ambient_weather_const.min_count_bit_for_found;
diff --git a/applications/services/cli/cli_command_gpio.c b/applications/services/cli/cli_command_gpio.c
index d072ce00c..3e7301cdc 100644
--- a/applications/services/cli/cli_command_gpio.c
+++ b/applications/services/cli/cli_command_gpio.c
@@ -61,15 +61,20 @@ static void gpio_print_pins(void) {
     }
 }
 
-typedef enum { OK, ERR_CMD_SYNTAX, ERR_PIN, ERR_VALUE } GpioParseError;
+typedef enum {
+    GpioParseReturnOk,
+    GpioParseReturnCmdSyntaxError,
+    GpioParseReturnPinError,
+    GpioParseReturnValueError
+} GpioParseReturn;
 
-static GpioParseError gpio_command_parse(FuriString* args, size_t* pin_num, uint8_t* value) {
+static GpioParseReturn gpio_command_parse(FuriString* args, size_t* pin_num, uint8_t* value) {
     FuriString* pin_name;
     pin_name = furi_string_alloc();
 
     size_t ws = furi_string_search_char(args, ' ');
     if(ws == FURI_STRING_FAILURE) {
-        return ERR_CMD_SYNTAX;
+        return GpioParseReturnCmdSyntaxError;
     }
 
     furi_string_set_n(pin_name, args, 0, ws);
@@ -78,7 +83,7 @@ static GpioParseError gpio_command_parse(FuriString* args, size_t* pin_num, uint
 
     if(!pin_name_to_int(pin_name, pin_num)) {
         furi_string_free(pin_name);
-        return ERR_PIN;
+        return GpioParseReturnPinError;
     }
 
     furi_string_free(pin_name);
@@ -88,10 +93,10 @@ static GpioParseError gpio_command_parse(FuriString* args, size_t* pin_num, uint
     } else if(!furi_string_cmp(args, "1")) {
         *value = 1;
     } else {
-        return ERR_VALUE;
+        return GpioParseReturnValueError;
     }
 
-    return OK;
+    return GpioParseReturnOk;
 }
 
 void cli_command_gpio_mode(Cli* cli, FuriString* args, void* context) {
@@ -101,15 +106,15 @@ void cli_command_gpio_mode(Cli* cli, FuriString* args, void* context) {
     size_t num = 0;
     uint8_t value = 255;
 
-    GpioParseError err = gpio_command_parse(args, &num, &value);
+    GpioParseReturn err = gpio_command_parse(args, &num, &value);
 
-    if(ERR_CMD_SYNTAX == err) {
+    if(err == GpioParseReturnCmdSyntaxError) {
         cli_print_usage("gpio mode", "<pin_name> <0|1>", furi_string_get_cstr(args));
         return;
-    } else if(ERR_PIN == err) {
+    } else if(err == GpioParseReturnPinError) {
         gpio_print_pins();
         return;
-    } else if(ERR_VALUE == err) {
+    } else if(err == GpioParseReturnValueError) {
         printf("Value is invalid. Enter 1 for input or 0 for output");
         return;
     }
@@ -161,15 +166,15 @@ void cli_command_gpio_set(Cli* cli, FuriString* args, void* context) {
 
     size_t num = 0;
     uint8_t value = 0;
-    GpioParseError err = gpio_command_parse(args, &num, &value);
+    GpioParseReturn err = gpio_command_parse(args, &num, &value);
 
-    if(ERR_CMD_SYNTAX == err) {
+    if(err == GpioParseReturnCmdSyntaxError) {
         cli_print_usage("gpio set", "<pin_name> <0|1>", furi_string_get_cstr(args));
         return;
-    } else if(ERR_PIN == err) {
+    } else if(err == GpioParseReturnPinError) {
         gpio_print_pins();
         return;
-    } else if(ERR_VALUE == err) {
+    } else if(err == GpioParseReturnValueError) {
         printf("Value is invalid. Enter 1 for high or 0 for low");
         return;
     }
diff --git a/applications/services/cli/cli_vcp.c b/applications/services/cli/cli_vcp.c
index 1e27e185b..94b82950d 100644
--- a/applications/services/cli/cli_vcp.c
+++ b/applications/services/cli/cli_vcp.c
@@ -103,7 +103,7 @@ static int32_t vcp_worker(void* context) {
     while(1) {
         uint32_t flags =
             furi_thread_flags_wait(VCP_THREAD_FLAG_ALL, FuriFlagWaitAny, FuriWaitForever);
-        furi_assert((flags & FuriFlagError) == 0);
+        furi_assert(!(flags & FuriFlagError));
 
         // VCP session opened
         if(flags & VcpEvtConnect) {
@@ -303,7 +303,7 @@ static void vcp_on_cdc_control_line(void* context, uint8_t state) {
 static void vcp_on_cdc_rx(void* context) {
     UNUSED(context);
     uint32_t ret = furi_thread_flags_set(furi_thread_get_id(vcp->thread), VcpEvtRx);
-    furi_check((ret & FuriFlagError) == 0);
+    furi_check(!(ret & FuriFlagError));
 }
 
 static void vcp_on_cdc_tx_complete(void* context) {
diff --git a/applications/services/crypto/crypto_cli.c b/applications/services/crypto/crypto_cli.c
index a64a3ad0b..1b26ba9fb 100644
--- a/applications/services/crypto/crypto_cli.c
+++ b/applications/services/crypto/crypto_cli.c
@@ -167,7 +167,7 @@ void crypto_cli_decrypt(Cli* cli, FuriString* args) {
 void crypto_cli_has_key(Cli* cli, FuriString* args) {
     UNUSED(cli);
     int key_slot = 0;
-    uint8_t iv[16];
+    uint8_t iv[16] = {0};
 
     do {
         if(!args_read_int_and_trim(args, &key_slot) || !(key_slot > 0 && key_slot <= 100)) {
@@ -249,7 +249,7 @@ void crypto_cli_store_key(Cli* cli, FuriString* args) {
         }
 
         if(key_slot > 0) {
-            uint8_t iv[16];
+            uint8_t iv[16] = {0};
             if(key_slot > 1) {
                 if(!furi_hal_crypto_store_load_key(key_slot - 1, iv)) {
                     printf(
diff --git a/applications/services/gui/gui.c b/applications/services/gui/gui.c
index 76a68b533..fcbcbc21e 100644
--- a/applications/services/gui/gui.c
+++ b/applications/services/gui/gui.c
@@ -419,7 +419,7 @@ void gui_add_framebuffer_callback(Gui* gui, GuiCanvasCommitCallback callback, vo
     const CanvasCallbackPair p = {callback, context};
 
     gui_lock(gui);
-    furi_assert(CanvasCallbackPairArray_count(gui->canvas_callback_pair, p) == 0);
+    furi_assert(!CanvasCallbackPairArray_count(gui->canvas_callback_pair, p));
     CanvasCallbackPairArray_push_back(gui->canvas_callback_pair, p);
     gui_unlock(gui);
 
diff --git a/applications/services/gui/modules/file_browser_worker.c b/applications/services/gui/modules/file_browser_worker.c
index 4bff50c42..494c839e1 100644
--- a/applications/services/gui/modules/file_browser_worker.c
+++ b/applications/services/gui/modules/file_browser_worker.c
@@ -363,7 +363,7 @@ static int32_t browser_worker(void* context) {
 
 BrowserWorker*
     file_browser_worker_alloc(FuriString* path, const char* filter_ext, bool skip_assets) {
-    BrowserWorker* browser = malloc(sizeof(BrowserWorker));
+    BrowserWorker* browser = malloc(sizeof(BrowserWorker)); //-V773
 
     idx_last_array_init(browser->idx_last);
 
diff --git a/applications/services/gui/modules/widget_elements/widget_element_button.c b/applications/services/gui/modules/widget_elements/widget_element_button.c
index be33b1897..e3267058e 100644
--- a/applications/services/gui/modules/widget_elements/widget_element_button.c
+++ b/applications/services/gui/modules/widget_elements/widget_element_button.c
@@ -60,7 +60,7 @@ WidgetElement* widget_element_button_create(
     ButtonCallback callback,
     void* context) {
     // Allocate and init model
-    GuiButtonModel* model = malloc(sizeof(GuiButtonModel));
+    GuiButtonModel* model = malloc(sizeof(GuiButtonModel)); //-V773
     model->button_type = button_type;
     model->callback = callback;
     model->context = context;
diff --git a/applications/services/gui/view_dispatcher.c b/applications/services/gui/view_dispatcher.c
index 8de452d20..4034cc0b4 100644
--- a/applications/services/gui/view_dispatcher.c
+++ b/applications/services/gui/view_dispatcher.c
@@ -23,7 +23,7 @@ void view_dispatcher_free(ViewDispatcher* view_dispatcher) {
         gui_remove_view_port(view_dispatcher->gui, view_dispatcher->view_port);
     }
     // Crash if not all views were freed
-    furi_assert(ViewDict_size(view_dispatcher->views) == 0);
+    furi_assert(!ViewDict_size(view_dispatcher->views));
 
     ViewDict_clear(view_dispatcher->views);
     // Free ViewPort
@@ -157,7 +157,7 @@ void view_dispatcher_remove_view(ViewDispatcher* view_dispatcher, uint32_t view_
         view_dispatcher->ongoing_input_view = NULL;
     }
     // Remove view
-    ViewDict_erase(view_dispatcher->views, view_id);
+    furi_check(ViewDict_erase(view_dispatcher->views, view_id));
 
     view_set_update_callback(view, NULL);
     view_set_update_callback_context(view, NULL);
diff --git a/applications/services/loader/loader.c b/applications/services/loader/loader.c
index 2e0c54448..261d3aa4b 100644
--- a/applications/services/loader/loader.c
+++ b/applications/services/loader/loader.c
@@ -280,7 +280,7 @@ static void loader_thread_state_callback(FuriThreadState thread_state, void* con
         event.type = LoaderEventTypeApplicationStarted;
         furi_pubsub_publish(loader_instance->pubsub, &event);
 
-        if(!loader_instance->application->flags & FlipperApplicationFlagInsomniaSafe) {
+        if(!(loader_instance->application->flags & FlipperApplicationFlagInsomniaSafe)) {
             furi_hal_power_insomnia_enter();
         }
     } else if(thread_state == FuriThreadStateStopped) {
@@ -295,7 +295,7 @@ static void loader_thread_state_callback(FuriThreadState thread_state, void* con
             loader_instance->application_arguments = NULL;
         }
 
-        if(!loader_instance->application->flags & FlipperApplicationFlagInsomniaSafe) {
+        if(!(loader_instance->application->flags & FlipperApplicationFlagInsomniaSafe)) {
             furi_hal_power_insomnia_exit();
         }
         loader_unlock(instance);
diff --git a/applications/services/storage/storage_cli.c b/applications/services/storage/storage_cli.c
index 0efcb5e2c..c83f16499 100644
--- a/applications/services/storage/storage_cli.c
+++ b/applications/services/storage/storage_cli.c
@@ -275,7 +275,7 @@ static void storage_cli_read_chunks(Cli* cli, FuriString* path, FuriString* args
     uint32_t buffer_size;
     int parsed_count = sscanf(furi_string_get_cstr(args), "%lu", &buffer_size);
 
-    if(parsed_count == EOF || parsed_count != 1) {
+    if(parsed_count != 1) {
         storage_cli_print_usage();
     } else if(storage_file_open(file, furi_string_get_cstr(path), FSAM_READ, FSOM_OPEN_EXISTING)) {
         uint64_t file_size = storage_file_size(file);
@@ -315,7 +315,7 @@ static void storage_cli_write_chunk(Cli* cli, FuriString* path, FuriString* args
     uint32_t buffer_size;
     int parsed_count = sscanf(furi_string_get_cstr(args), "%lu", &buffer_size);
 
-    if(parsed_count == EOF || parsed_count != 1) {
+    if(parsed_count != 1) {
         storage_cli_print_usage();
     } else {
         if(storage_file_open(file, furi_string_get_cstr(path), FSAM_WRITE, FSOM_OPEN_APPEND)) {
diff --git a/applications/services/storage/storage_external_api.c b/applications/services/storage/storage_external_api.c
index 6854ef7f3..2c3a7bfc9 100644
--- a/applications/services/storage/storage_external_api.c
+++ b/applications/services/storage/storage_external_api.c
@@ -545,8 +545,8 @@ static FS_Error
 
 FS_Error storage_common_merge(Storage* storage, const char* old_path, const char* new_path) {
     FS_Error error;
-    const char* new_path_tmp;
-    FuriString* new_path_next;
+    const char* new_path_tmp = NULL;
+    FuriString* new_path_next = NULL;
     new_path_next = furi_string_alloc();
 
     FileInfo fileinfo;
diff --git a/debug/flipperapps.py b/debug/flipperapps.py
index 8e1aa2daf..e815e40b1 100644
--- a/debug/flipperapps.py
+++ b/debug/flipperapps.py
@@ -1,5 +1,5 @@
 from dataclasses import dataclass
-from typing import Tuple, Dict
+from typing import Optional, Tuple, Dict, ClassVar
 import struct
 import posixpath
 import os
@@ -22,14 +22,18 @@ class AppState:
     debug_link_elf: str = ""
     debug_link_crc: int = 0
 
+    DEBUG_ELF_ROOT: ClassVar[Optional[str]] = None
+
     def __post_init__(self):
         if self.other_sections is None:
             self.other_sections = {}
 
-    def get_original_elf_path(self, elf_path="build/latest/.extapps") -> str:
+    def get_original_elf_path(self) -> str:
+        if self.DEBUG_ELF_ROOT is None:
+            raise ValueError("DEBUG_ELF_ROOT not set; call fap-set-debug-elf-root")
         return (
-            posixpath.join(elf_path, self.debug_link_elf)
-            if elf_path
+            posixpath.join(self.DEBUG_ELF_ROOT, self.debug_link_elf)
+            if self.DEBUG_ELF_ROOT
             else self.debug_link_elf
         )
 
@@ -84,7 +88,9 @@ class AppState:
         if debug_link_size := int(app_state["debug_link_info"]["debug_link_size"]):
             debug_link_data = (
                 gdb.selected_inferior()
-                .read_memory(int(app_state["debug_link_info"]["debug_link"]), debug_link_size)
+                .read_memory(
+                    int(app_state["debug_link_info"]["debug_link"]), debug_link_size
+                )
                 .tobytes()
             )
             state.debug_link_elf, state.debug_link_crc = AppState.parse_debug_link_data(
@@ -103,6 +109,29 @@ class AppState:
         return state
 
 
+class SetFapDebugElfRoot(gdb.Command):
+    """Set path to original ELF files for debug info"""
+
+    def __init__(self):
+        super().__init__(
+            "fap-set-debug-elf-root", gdb.COMMAND_FILES, gdb.COMPLETE_FILENAME
+        )
+        self.dont_repeat()
+
+    def invoke(self, arg, from_tty):
+        AppState.DEBUG_ELF_ROOT = arg
+        try:
+            global helper
+            print(f"Set '{arg}' as debug info lookup path for Flipper external apps")
+            helper.attach_fw()
+            gdb.events.stop.connect(helper.handle_stop)
+        except gdb.error as e:
+            print(f"Support for Flipper external apps debug is not available: {e}")
+
+
+SetFapDebugElfRoot()
+
+
 class FlipperAppDebugHelper:
     def __init__(self):
         self.app_ptr = None
@@ -149,9 +178,4 @@ class FlipperAppDebugHelper:
 
 
 helper = FlipperAppDebugHelper()
-try:
-    helper.attach_fw()
-    print("Support for Flipper external apps debug is enabled")
-    gdb.events.stop.connect(helper.handle_stop)
-except gdb.error as e:
-    print(f"Support for Flipper external apps debug is not available: {e}")
+print("Support for Flipper external apps debug is loaded")
diff --git a/fbt_options.py b/fbt_options.py
index 9bdac1755..6b24c66ca 100644
--- a/fbt_options.py
+++ b/fbt_options.py
@@ -49,12 +49,12 @@ OPENOCD_OPTS = [
     "-c",
     "transport select hla_swd",
     "-f",
-    "debug/stm32wbx.cfg",
+    "${FBT_DEBUG_DIR}/stm32wbx.cfg",
     "-c",
     "stm32wbx.cpu configure -rtos auto",
 ]
 
-SVD_FILE = "debug/STM32WB55_CM4.svd"
+SVD_FILE = "${FBT_DEBUG_DIR}/STM32WB55_CM4.svd"
 
 # Look for blackmagic probe on serial ports and local network
 BLACKMAGIC = "auto"
diff --git a/firmware.scons b/firmware.scons
index a0c1ab339..6feb73ac3 100644
--- a/firmware.scons
+++ b/firmware.scons
@@ -20,8 +20,7 @@ env = ENV.Clone(
     BUILD_DIR=fw_build_meta["build_dir"],
     IS_BASE_FIRMWARE=fw_build_meta["type"] == "firmware",
     FW_FLAVOR=fw_build_meta["flavor"],
-    PLUGIN_ELF_DIR="${BUILD_DIR}",
-    LIB_DIST_DIR="${BUILD_DIR}/lib",
+    LIB_DIST_DIR=fw_build_meta["build_dir"].Dir("lib"),
     LINT_SOURCES=[
         "applications",
     ],
@@ -142,12 +141,14 @@ for app_dir, _ in env["APPDIRS"]:
 
 fwenv.PrepareApplicationsBuild()
 
-# Build external apps
+# Build external apps + configure SDK
 if env["IS_BASE_FIRMWARE"]:
-    extapps = fwenv["FW_EXTAPPS"] = SConscript(
-        "site_scons/extapps.scons", exports={"ENV": fwenv}
+    fwenv.SetDefault(FBT_FAP_DEBUG_ELF_ROOT="${BUILD_DIR}/.extapps")
+    fwenv["FW_EXTAPPS"] = SConscript(
+        "site_scons/extapps.scons",
+        exports={"ENV": fwenv},
     )
-    fw_artifacts.append(extapps["sdk_tree"])
+    fw_artifacts.append(fwenv["FW_EXTAPPS"].sdk_tree)
 
 
 # Add preprocessor definitions for current set of apps
diff --git a/firmware/targets/f7/ble_glue/gap.c b/firmware/targets/f7/ble_glue/gap.c
index aa8cd2c90..cf27df3a3 100644
--- a/firmware/targets/f7/ble_glue/gap.c
+++ b/firmware/targets/f7/ble_glue/gap.c
@@ -179,7 +179,7 @@ SVCCTL_UserEvtFlowStatus_t SVCCTL_App_Notification(void* pckt) {
 
         case EVT_BLUE_GAP_PASS_KEY_REQUEST: {
             // Generate random PIN code
-            uint32_t pin = rand() % 999999;
+            uint32_t pin = rand() % 999999; //-V1064
             aci_gap_pass_key_resp(gap->service.connection_handle, pin);
             if(furi_hal_rtc_is_flag_set(FuriHalRtcFlagLock)) {
                 FURI_LOG_I(TAG, "Pass key request event. Pin: ******");
@@ -478,7 +478,6 @@ bool gap_init(GapConfig* config, GapEventCallback on_event_cb, void* context) {
 
     gap = malloc(sizeof(Gap));
     gap->config = config;
-    srand(DWT->CYCCNT);
     // Create advertising timer
     gap->advertise_timer = furi_timer_alloc(gap_advetise_timer_callback, FuriTimerTypeOnce, NULL);
     // Initialization of GATT & GAP layer
diff --git a/firmware/targets/f7/furi_hal/furi_hal_crypto.c b/firmware/targets/f7/furi_hal/furi_hal_crypto.c
index dbd8c58c2..e0ed3ab9b 100644
--- a/firmware/targets/f7/furi_hal/furi_hal_crypto.c
+++ b/firmware/targets/f7/furi_hal/furi_hal_crypto.c
@@ -91,7 +91,7 @@ bool furi_hal_crypto_verify_key(uint8_t key_slot) {
     uint8_t keys_nb = 0;
     uint8_t valid_keys_nb = 0;
     uint8_t last_valid_slot = ENCLAVE_FACTORY_KEY_SLOTS;
-    uint8_t empty_iv[16];
+    uint8_t empty_iv[16] = {0};
     furi_hal_crypto_verify_enclave(&keys_nb, &valid_keys_nb);
     if(key_slot <= ENCLAVE_FACTORY_KEY_SLOTS) { // It's a factory key
         if(key_slot > keys_nb) return false;
diff --git a/furi/core/check.h b/furi/core/check.h
index 78efc1451..192c5260e 100644
--- a/furi/core/check.h
+++ b/furi/core/check.h
@@ -46,7 +46,7 @@ FURI_NORETURN void __furi_halt();
 /** Check condition and crash if check failed */
 #define furi_check(__e)                          \
     do {                                         \
-        if((__e) == 0) {                         \
+        if(!(__e)) {                             \
             furi_crash("furi_check failed\r\n"); \
         }                                        \
     } while(0)
@@ -55,7 +55,7 @@ FURI_NORETURN void __furi_halt();
 #ifdef FURI_DEBUG
 #define furi_assert(__e)                          \
     do {                                          \
-        if((__e) == 0) {                          \
+        if(!(__e)) {                              \
             furi_crash("furi_assert failed\r\n"); \
         }                                         \
     } while(0)
diff --git a/furi/core/event_flag.c b/furi/core/event_flag.c
index 5d2a49910..07dd30a16 100644
--- a/furi/core/event_flag.c
+++ b/furi/core/event_flag.c
@@ -25,7 +25,7 @@ uint32_t furi_event_flag_set(FuriEventFlag* instance, uint32_t flags) {
     uint32_t rflags;
     BaseType_t yield;
 
-    if(FURI_IS_IRQ_MODE() != 0U) {
+    if(FURI_IS_IRQ_MODE()) {
         yield = pdFALSE;
         if(xEventGroupSetBitsFromISR(hEventGroup, (EventBits_t)flags, &yield) == pdFAIL) {
             rflags = (uint32_t)FuriStatusErrorResource;
@@ -48,7 +48,7 @@ uint32_t furi_event_flag_clear(FuriEventFlag* instance, uint32_t flags) {
     EventGroupHandle_t hEventGroup = (EventGroupHandle_t)instance;
     uint32_t rflags;
 
-    if(FURI_IS_IRQ_MODE() != 0U) {
+    if(FURI_IS_IRQ_MODE()) {
         rflags = xEventGroupGetBitsFromISR(hEventGroup);
 
         if(xEventGroupClearBitsFromISR(hEventGroup, (EventBits_t)flags) == pdFAIL) {
@@ -73,7 +73,7 @@ uint32_t furi_event_flag_get(FuriEventFlag* instance) {
     EventGroupHandle_t hEventGroup = (EventGroupHandle_t)instance;
     uint32_t rflags;
 
-    if(FURI_IS_IRQ_MODE() != 0U) {
+    if(FURI_IS_IRQ_MODE()) {
         rflags = xEventGroupGetBitsFromISR(hEventGroup);
     } else {
         rflags = xEventGroupGetBits(hEventGroup);
diff --git a/furi/core/memmgr_heap.c b/furi/core/memmgr_heap.c
index 32b2875cc..ac51b4a20 100644
--- a/furi/core/memmgr_heap.c
+++ b/furi/core/memmgr_heap.c
@@ -150,8 +150,7 @@ void memmgr_heap_disable_thread_trace(FuriThreadId thread_id) {
     vTaskSuspendAll();
     {
         memmgr_heap_thread_trace_depth++;
-        furi_check(MemmgrHeapThreadDict_get(memmgr_heap_thread_dict, (uint32_t)thread_id) != NULL);
-        MemmgrHeapThreadDict_erase(memmgr_heap_thread_dict, (uint32_t)thread_id);
+        furi_check(MemmgrHeapThreadDict_erase(memmgr_heap_thread_dict, (uint32_t)thread_id));
         memmgr_heap_thread_trace_depth--;
     }
     (void)xTaskResumeAll();
@@ -212,7 +211,8 @@ static inline void traceFREE(void* pointer, size_t size) {
         MemmgrHeapAllocDict_t* alloc_dict =
             MemmgrHeapThreadDict_get(memmgr_heap_thread_dict, (uint32_t)thread_id);
         if(alloc_dict) {
-            MemmgrHeapAllocDict_erase(*alloc_dict, (uint32_t)pointer);
+            // In some cases thread may want to release memory that was not allocated by it
+            (void)MemmgrHeapAllocDict_erase(*alloc_dict, (uint32_t)pointer);
         }
         memmgr_heap_thread_trace_depth--;
     }
diff --git a/furi/core/mutex.c b/furi/core/mutex.c
index 78ea05196..ab66b0f18 100644
--- a/furi/core/mutex.c
+++ b/furi/core/mutex.c
@@ -45,7 +45,7 @@ FuriStatus furi_mutex_acquire(FuriMutex* instance, uint32_t timeout) {
 
     stat = FuriStatusOk;
 
-    if(FURI_IS_IRQ_MODE() != 0U) {
+    if(FURI_IS_IRQ_MODE()) {
         stat = FuriStatusErrorISR;
     } else if(hMutex == NULL) {
         stat = FuriStatusErrorParameter;
@@ -85,7 +85,7 @@ FuriStatus furi_mutex_release(FuriMutex* instance) {
 
     stat = FuriStatusOk;
 
-    if(FURI_IS_IRQ_MODE() != 0U) {
+    if(FURI_IS_IRQ_MODE()) {
         stat = FuriStatusErrorISR;
     } else if(hMutex == NULL) {
         stat = FuriStatusErrorParameter;
@@ -111,7 +111,7 @@ FuriThreadId furi_mutex_get_owner(FuriMutex* instance) {
 
     hMutex = (SemaphoreHandle_t)((uint32_t)instance & ~1U);
 
-    if((FURI_IS_IRQ_MODE() != 0U) || (hMutex == NULL)) {
+    if((FURI_IS_IRQ_MODE()) || (hMutex == NULL)) {
         owner = 0;
     } else {
         owner = (FuriThreadId)xSemaphoreGetMutexHolder(hMutex);
diff --git a/furi/core/semaphore.c b/furi/core/semaphore.c
index a204cbe6e..8c99bfc54 100644
--- a/furi/core/semaphore.c
+++ b/furi/core/semaphore.c
@@ -45,7 +45,7 @@ FuriStatus furi_semaphore_acquire(FuriSemaphore* instance, uint32_t timeout) {
 
     stat = FuriStatusOk;
 
-    if(FURI_IS_IRQ_MODE() != 0U) {
+    if(FURI_IS_IRQ_MODE()) {
         if(timeout != 0U) {
             stat = FuriStatusErrorParameter;
         } else {
@@ -80,7 +80,7 @@ FuriStatus furi_semaphore_release(FuriSemaphore* instance) {
 
     stat = FuriStatusOk;
 
-    if(FURI_IS_IRQ_MODE() != 0U) {
+    if(FURI_IS_IRQ_MODE()) {
         yield = pdFALSE;
 
         if(xSemaphoreGiveFromISR(hSemaphore, &yield) != pdTRUE) {
@@ -104,7 +104,7 @@ uint32_t furi_semaphore_get_count(FuriSemaphore* instance) {
     SemaphoreHandle_t hSemaphore = (SemaphoreHandle_t)instance;
     uint32_t count;
 
-    if(FURI_IS_IRQ_MODE() != 0U) {
+    if(FURI_IS_IRQ_MODE()) {
         count = (uint32_t)uxSemaphoreGetCountFromISR(hSemaphore);
     } else {
         count = (uint32_t)uxSemaphoreGetCount(hSemaphore);
diff --git a/furi/core/stream_buffer.c b/furi/core/stream_buffer.c
index b9d0629fe..2df84fa5b 100644
--- a/furi/core/stream_buffer.c
+++ b/furi/core/stream_buffer.c
@@ -23,7 +23,7 @@ size_t furi_stream_buffer_send(
     uint32_t timeout) {
     size_t ret;
 
-    if(FURI_IS_IRQ_MODE() != 0U) {
+    if(FURI_IS_IRQ_MODE()) {
         BaseType_t yield;
         ret = xStreamBufferSendFromISR(stream_buffer, data, length, &yield);
         portYIELD_FROM_ISR(yield);
@@ -41,7 +41,7 @@ size_t furi_stream_buffer_receive(
     uint32_t timeout) {
     size_t ret;
 
-    if(FURI_IS_IRQ_MODE() != 0U) {
+    if(FURI_IS_IRQ_MODE()) {
         BaseType_t yield;
         ret = xStreamBufferReceiveFromISR(stream_buffer, data, length, &yield);
         portYIELD_FROM_ISR(yield);
diff --git a/furi/core/string.c b/furi/core/string.c
index 099f70c11..901b1f625 100644
--- a/furi/core/string.c
+++ b/furi/core/string.c
@@ -29,13 +29,13 @@ FuriString* furi_string_alloc() {
 }
 
 FuriString* furi_string_alloc_set(const FuriString* s) {
-    FuriString* string = malloc(sizeof(FuriString));
+    FuriString* string = malloc(sizeof(FuriString)); //-V773
     string_init_set(string->string, s->string);
     return string;
 }
 
 FuriString* furi_string_alloc_set_str(const char cstr[]) {
-    FuriString* string = malloc(sizeof(FuriString));
+    FuriString* string = malloc(sizeof(FuriString)); //-V773
     string_init_set(string->string, cstr);
     return string;
 }
diff --git a/furi/core/thread.c b/furi/core/thread.c
index 508146f63..157e022e9 100644
--- a/furi/core/thread.c
+++ b/furi/core/thread.c
@@ -50,6 +50,7 @@ static int32_t __furi_thread_stdout_flush(FuriThread* thread);
 __attribute__((__noreturn__)) void furi_thread_catch() {
     asm volatile("nop"); // extra magic
     furi_crash("You are doing it wrong");
+    __builtin_unreachable();
 }
 
 static void furi_thread_set_state(FuriThread* thread, FuriThreadState state) {
@@ -112,6 +113,12 @@ FuriThread* furi_thread_alloc() {
     FuriThread* thread = malloc(sizeof(FuriThread));
     thread->output.buffer = furi_string_alloc();
     thread->is_service = false;
+
+    if(furi_thread_get_current_id()) {
+        FuriThread* parent = pvTaskGetThreadLocalStoragePointer(NULL, 0);
+        if(parent) thread->heap_trace_enabled = parent->heap_trace_enabled;
+    }
+
     return thread;
 }
 
diff --git a/lib/flipper_format/flipper_format_stream.c b/lib/flipper_format/flipper_format_stream.c
index 41934a3b1..9cce95d47 100644
--- a/lib/flipper_format/flipper_format_stream.c
+++ b/lib/flipper_format/flipper_format_stream.c
@@ -313,7 +313,7 @@ bool flipper_format_stream_write_value_line(Stream* stream, FlipperStreamWriteDa
                     furi_crash("Unknown FF type");
                 }
 
-                if((size_t)(i + 1) < write_data->data_size) {
+                if(((size_t)i + 1) < write_data->data_size) {
                     furi_string_cat(value, " ");
                 }
 
diff --git a/lib/infrared/encoder_decoder/common/infrared_common_decoder.c b/lib/infrared/encoder_decoder/common/infrared_common_decoder.c
index bff4c73db..7f1c3a4fd 100644
--- a/lib/infrared/encoder_decoder/common/infrared_common_decoder.c
+++ b/lib/infrared/encoder_decoder/common/infrared_common_decoder.c
@@ -85,8 +85,8 @@ static InfraredStatus infrared_common_decode_bits(InfraredCommonDecoder* decoder
         if(timings->min_split_time && !level) {
             if(timing > timings->min_split_time) {
                 /* long low timing - check if we're ready for any of protocol modification */
-                for(size_t i = 0; decoder->protocol->databit_len[i] &&
-                                  (i < COUNT_OF(decoder->protocol->databit_len));
+                for(size_t i = 0; i < COUNT_OF(decoder->protocol->databit_len) &&
+                                  decoder->protocol->databit_len[i];
                     ++i) {
                     if(decoder->protocol->databit_len[i] == decoder->databit_cnt) {
                         return InfraredStatusReady;
@@ -199,7 +199,7 @@ InfraredMessage* infrared_common_decoder_check_ready(InfraredCommonDecoder* deco
     bool found_length = false;
 
     for(size_t i = 0;
-        decoder->protocol->databit_len[i] && (i < COUNT_OF(decoder->protocol->databit_len));
+        i < COUNT_OF(decoder->protocol->databit_len) && decoder->protocol->databit_len[i];
         ++i) {
         if(decoder->protocol->databit_len[i] == decoder->databit_cnt) {
             found_length = true;
diff --git a/lib/lfrfid/lfrfid_worker.c b/lib/lfrfid/lfrfid_worker.c
index 8b4f8b6a9..f3e37fa3c 100644
--- a/lib/lfrfid/lfrfid_worker.c
+++ b/lib/lfrfid/lfrfid_worker.c
@@ -140,9 +140,8 @@ size_t lfrfid_worker_dict_get_data_size(LFRFIDWorker* worker, LFRFIDProtocol pro
 
 static int32_t lfrfid_worker_thread(void* thread_context) {
     LFRFIDWorker* worker = thread_context;
-    bool running = true;
 
-    while(running) {
+    while(true) {
         uint32_t flags = furi_thread_flags_wait(LFRFIDEventAll, FuriFlagWaitAny, FuriWaitForever);
         if(flags != FuriFlagErrorTimeout) {
             // stop thread
diff --git a/lib/print/printf_tiny.c b/lib/print/printf_tiny.c
index 0db11922d..6e47f6528 100644
--- a/lib/print/printf_tiny.c
+++ b/lib/print/printf_tiny.c
@@ -541,7 +541,7 @@ static size_t _etoa(
     exp2 = (int)(expval * 3.321928094887362 + 0.5);
     const double z = expval * 2.302585092994046 - exp2 * 0.6931471805599453;
     const double z2 = z * z;
-    conv.U = (uint64_t)(exp2 + 1023) << 52U;
+    conv.U = ((uint64_t)exp2 + 1023) << 52U;
     // compute exp(z) using continued fractions, see https://en.wikipedia.org/wiki/Exponential_function#Continued_fractions_for_ex
     conv.F *= 1 + 2 * z / (2 - z + (z2 / (6 + (z2 / (10 + z2 / 14)))));
     // correct for rounding errors
diff --git a/lib/subghz/protocols/power_smart.c b/lib/subghz/protocols/power_smart.c
index 63ca78711..1e8d10e95 100644
--- a/lib/subghz/protocols/power_smart.c
+++ b/lib/subghz/protocols/power_smart.c
@@ -312,7 +312,6 @@ void subghz_protocol_decoder_power_smart_feed(
         if((instance->decoder.decode_data & POWER_SMART_PACKET_HEADER_MASK) ==
            POWER_SMART_PACKET_HEADER) {
             if(subghz_protocol_power_smart_chek_valid(instance->decoder.decode_data)) {
-                instance->decoder.decode_data = instance->decoder.decode_data;
                 instance->generic.data = instance->decoder.decode_data;
                 instance->generic.data_count_bit =
                     subghz_protocol_power_smart_const.min_count_bit_for_found;
diff --git a/lib/subghz/subghz_keystore.c b/lib/subghz/subghz_keystore.c
index 1b4b3b716..e06bd9796 100644
--- a/lib/subghz/subghz_keystore.c
+++ b/lib/subghz/subghz_keystore.c
@@ -464,7 +464,7 @@ bool subghz_keystore_raw_encrypted_save(
             }
             stream_write_cstring(output_stream, encrypted_line);
 
-        } while(ret > 0 && result);
+        } while(result);
 
         flipper_format_free(output_flipper_format);
 
diff --git a/scripts/fbt/elfmanifest.py b/scripts/fbt/elfmanifest.py
index 313a64c09..17bceddf4 100644
--- a/scripts/fbt/elfmanifest.py
+++ b/scripts/fbt/elfmanifest.py
@@ -5,6 +5,7 @@ import struct
 from dataclasses import dataclass, field
 
 from .appmanifest import FlipperApplication
+from flipper.assets.icon import file2image
 
 
 _MANIFEST_MAGIC = 0x52474448
@@ -53,8 +54,6 @@ def assemble_manifest_data(
 ):
     image_data = b""
     if app_manifest.fap_icon:
-        from flipper.assets.icon import file2image
-
         image = file2image(os.path.join(app_manifest._apppath, app_manifest.fap_icon))
         if (image.width, image.height) != (10, 10):
             raise ValueError(
diff --git a/scripts/fbt/sdk/cache.py b/scripts/fbt/sdk/cache.py
index 62d42798c..756c37827 100644
--- a/scripts/fbt/sdk/cache.py
+++ b/scripts/fbt/sdk/cache.py
@@ -89,6 +89,9 @@ class SdkCache:
         syms.update(map(lambda e: e.name, self.get_variables()))
         return syms
 
+    def get_disabled_names(self):
+        return set(map(lambda e: e.name, self.disabled_entries))
+
     def get_functions(self):
         return self._filter_enabled(self.sdk.functions)
 
diff --git a/scripts/fbt_tools/fbt_assets.py b/scripts/fbt_tools/fbt_assets.py
index 521c37e90..e17487358 100644
--- a/scripts/fbt_tools/fbt_assets.py
+++ b/scripts/fbt_tools/fbt_assets.py
@@ -139,7 +139,7 @@ def generate(env):
         BUILDERS={
             "IconBuilder": Builder(
                 action=Action(
-                    '${PYTHON3} "${ASSETS_COMPILER}" icons ${ABSPATHGETTERFUNC(SOURCE)} ${TARGET.dir} --filename ${ICON_FILE_NAME}',
+                    '${PYTHON3} "${ASSETS_COMPILER}" icons "${ABSPATHGETTERFUNC(SOURCE)}" "${TARGET.dir}" --filename ${ICON_FILE_NAME}',
                     "${ICONSCOMSTR}",
                 ),
                 emitter=icons_emitter,
diff --git a/scripts/fbt_tools/fbt_debugopts.py b/scripts/fbt_tools/fbt_debugopts.py
index 0c0ce3d32..c3be5ca47 100644
--- a/scripts/fbt_tools/fbt_debugopts.py
+++ b/scripts/fbt_tools/fbt_debugopts.py
@@ -1,7 +1,6 @@
 from re import search
 
 from SCons.Errors import UserError
-from fbt_options import OPENOCD_OPTS
 
 
 def _get_device_serials(search_str="STLink"):
@@ -20,6 +19,9 @@ def GetDevices(env):
 
 def generate(env, **kw):
     env.AddMethod(GetDevices)
+    env.SetDefault(
+        FBT_DEBUG_DIR="${ROOT_DIR}/debug",
+    )
 
     if (adapter_serial := env.subst("$OPENOCD_ADAPTER_SERIAL")) != "auto":
         env.Append(
@@ -36,7 +38,7 @@ def generate(env, **kw):
 
     env.SetDefault(
         OPENOCD_GDB_PIPE=[
-            "|openocd -c 'gdb_port pipe; log_output debug/openocd.log' ${[SINGLEQUOTEFUNC(OPENOCD_OPTS)]}"
+            "|openocd -c 'gdb_port pipe; log_output ${FBT_DEBUG_DIR}/openocd.log' ${[SINGLEQUOTEFUNC(OPENOCD_OPTS)]}"
         ],
         GDBOPTS_BASE=[
             "-ex",
@@ -58,17 +60,19 @@ def generate(env, **kw):
         ],
         GDBPYOPTS=[
             "-ex",
-            "source debug/FreeRTOS/FreeRTOS.py",
+            "source ${FBT_DEBUG_DIR}/FreeRTOS/FreeRTOS.py",
             "-ex",
-            "source debug/flipperapps.py",
+            "source ${FBT_DEBUG_DIR}/flipperapps.py",
             "-ex",
-            "source debug/PyCortexMDebug/PyCortexMDebug.py",
+            "fap-set-debug-elf-root ${FBT_FAP_DEBUG_ELF_ROOT}",
+            "-ex",
+            "source ${FBT_DEBUG_DIR}/PyCortexMDebug/PyCortexMDebug.py",
             "-ex",
             "svd_load ${SVD_FILE}",
             "-ex",
             "compare-sections",
         ],
-        JFLASHPROJECT="${ROOT_DIR.abspath}/debug/fw.jflash",
+        JFLASHPROJECT="${FBT_DEBUG_DIR}/fw.jflash",
     )
 
 
diff --git a/scripts/fbt_tools/fbt_dist.py b/scripts/fbt_tools/fbt_dist.py
index fb59e5b95..f0b443486 100644
--- a/scripts/fbt_tools/fbt_dist.py
+++ b/scripts/fbt_tools/fbt_dist.py
@@ -22,7 +22,7 @@ def GetProjetDirName(env, project=None):
 
 def create_fw_build_targets(env, configuration_name):
     flavor = GetProjetDirName(env, configuration_name)
-    build_dir = env.Dir("build").Dir(flavor).abspath
+    build_dir = env.Dir("build").Dir(flavor)
     return env.SConscript(
         "firmware.scons",
         variant_dir=build_dir,
@@ -131,7 +131,7 @@ def generate(env):
             "UsbInstall": Builder(
                 action=[
                     Action(
-                        '${PYTHON3} "${SELFUPDATE_SCRIPT}" dist/${DIST_DIR}/f${TARGET_HW}-update-${DIST_SUFFIX}/update.fuf'
+                        '${PYTHON3} "${SELFUPDATE_SCRIPT}" ${UPDATE_BUNDLE_DIR}/update.fuf'
                     ),
                     Touch("${TARGET}"),
                 ]
diff --git a/scripts/fbt_tools/fbt_extapps.py b/scripts/fbt_tools/fbt_extapps.py
index fb4dc2f16..f1906191b 100644
--- a/scripts/fbt_tools/fbt_extapps.py
+++ b/scripts/fbt_tools/fbt_extapps.py
@@ -1,6 +1,9 @@
+from dataclasses import dataclass, field
+from typing import Optional
 from SCons.Builder import Builder
 from SCons.Action import Action
 from SCons.Errors import UserError
+from SCons.Node import NodeList
 import SCons.Warnings
 
 from fbt.elfmanifest import assemble_manifest_data
@@ -16,6 +19,15 @@ import shutil
 from ansi.color import fg
 
 
+@dataclass
+class FlipperExternalAppInfo:
+    app: FlipperApplication
+    compact: NodeList = field(default_factory=NodeList)
+    debug: NodeList = field(default_factory=NodeList)
+    validator: NodeList = field(default_factory=NodeList)
+    installer: NodeList = field(default_factory=NodeList)
+
+
 def BuildAppElf(env, app):
     ext_apps_work_dir = env.subst("$EXT_APPS_WORK_DIR")
     app_work_dir = os.path.join(ext_apps_work_dir, app.appid)
@@ -26,15 +38,7 @@ def BuildAppElf(env, app):
 
     app_alias = f"fap_{app.appid}"
 
-    # Deprecation stub
-    legacy_app_taget_name = f"{app_env['FIRMWARE_BUILD_CFG']}_{app.appid}"
-
-    def legacy_app_build_stub(**kw):
-        raise UserError(
-            f"Target name '{legacy_app_taget_name}' is deprecated, use '{app_alias}' instead"
-        )
-
-    app_env.PhonyTarget(legacy_app_taget_name, Action(legacy_app_build_stub, None))
+    app_artifacts = FlipperExternalAppInfo(app)
 
     externally_built_files = []
     if app.fap_extbuild:
@@ -115,20 +119,22 @@ def BuildAppElf(env, app):
         CPPPATH=env.Dir(app_work_dir),
     )
 
-    app_elf_raw = app_env.Program(
+    app_artifacts.debug = app_env.Program(
         os.path.join(ext_apps_work_dir, f"{app.appid}_d"),
         app_sources,
         APP_ENTRY=app.entry_point,
     )
 
-    app_env.Clean(app_elf_raw, [*externally_built_files, app_env.Dir(app_work_dir)])
+    app_env.Clean(
+        app_artifacts.debug, [*externally_built_files, app_env.Dir(app_work_dir)]
+    )
 
-    app_elf_dump = app_env.ObjDump(app_elf_raw)
+    app_elf_dump = app_env.ObjDump(app_artifacts.debug)
     app_env.Alias(f"{app_alias}_list", app_elf_dump)
 
-    app_elf_augmented = app_env.EmbedAppMetadata(
+    app_artifacts.compact = app_env.EmbedAppMetadata(
         os.path.join(ext_apps_work_dir, app.appid),
-        app_elf_raw,
+        app_artifacts.debug,
         APP=app,
     )
 
@@ -139,19 +145,21 @@ def BuildAppElf(env, app):
     }
 
     app_env.Depends(
-        app_elf_augmented,
+        app_artifacts.compact,
         [app_env["SDK_DEFINITION"], app_env.Value(manifest_vals)],
     )
     if app.fap_icon:
         app_env.Depends(
-            app_elf_augmented,
+            app_artifacts.compact,
             app_env.File(f"{app._apppath}/{app.fap_icon}"),
         )
 
-    app_elf_import_validator = app_env.ValidateAppImports(app_elf_augmented)
-    app_env.AlwaysBuild(app_elf_import_validator)
-    app_env.Alias(app_alias, app_elf_import_validator)
-    return (app_elf_augmented, app_elf_raw, app_elf_import_validator)
+    app_artifacts.validator = app_env.ValidateAppImports(app_artifacts.compact)
+    app_env.AlwaysBuild(app_artifacts.validator)
+    app_env.Alias(app_alias, app_artifacts.validator)
+
+    env["EXT_APPS"][app.appid] = app_artifacts
+    return app_artifacts
 
 
 def prepare_app_metadata(target, source, env):
@@ -182,11 +190,17 @@ def validate_app_imports(target, source, env):
             app_syms.add(line.split()[0])
     unresolved_syms = app_syms - sdk_cache.get_valid_names()
     if unresolved_syms:
-        SCons.Warnings.warn(
-            SCons.Warnings.LinkWarning,
-            fg.brightyellow(f"{source[0].path}: app won't run. Unresolved symbols: ")
-            + fg.brightmagenta(f"{unresolved_syms}"),
-        )
+        warning_msg = fg.brightyellow(
+            f"{source[0].path}: app won't run. Unresolved symbols: "
+        ) + fg.brightmagenta(f"{unresolved_syms}")
+        disabled_api_syms = unresolved_syms.intersection(sdk_cache.get_disabled_names())
+        if disabled_api_syms:
+            warning_msg += (
+                fg.brightyellow(" (in API, but disabled: ")
+                + fg.brightmagenta(f"{disabled_api_syms}")
+                + fg.brightyellow(")")
+            )
+        SCons.Warnings.warn(SCons.Warnings.LinkWarning, warning_msg),
 
 
 def GetExtAppFromPath(env, app_dir):
@@ -208,26 +222,26 @@ def GetExtAppFromPath(env, app_dir):
     if not app:
         raise UserError(f"Failed to resolve application for given APPSRC={app_dir}")
 
-    app_elf = env["_extapps"]["compact"].get(app.appid, None)
-    if not app_elf:
+    app_artifacts = env["EXT_APPS"].get(app.appid, None)
+    if not app_artifacts:
         raise UserError(
             f"Application {app.appid} is not configured for building as external"
         )
 
-    app_validator = env["_extapps"]["validators"].get(app.appid, None)
-
-    return (app, app_elf[0], app_validator[0])
+    return app_artifacts
 
 
 def fap_dist_emitter(target, source, env):
     target_dir = target[0]
 
     target = []
-    for dist_entry in env["_extapps"]["dist"].values():
-        target.append(target_dir.Dir(dist_entry[0]).File(dist_entry[1][0].name))
-
-    for compact_entry in env["_extapps"]["compact"].values():
-        source.extend(compact_entry)
+    for _, app_artifacts in env["EXT_APPS"].items():
+        source.extend(app_artifacts.compact)
+        target.append(
+            target_dir.Dir(app_artifacts.app.fap_category).File(
+                app_artifacts.compact[0].name
+            )
+        )
 
     return (target, source)
 
@@ -244,10 +258,9 @@ def fap_dist_action(target, source, env):
 
 def generate(env, **kw):
     env.SetDefault(
-        EXT_APPS_WORK_DIR=kw.get("EXT_APPS_WORK_DIR"),
+        EXT_APPS_WORK_DIR="${FBT_FAP_DEBUG_ELF_ROOT}",
         APP_RUN_SCRIPT="${FBT_SCRIPT_DIR}/runfap.py",
     )
-
     if not env["VERBOSE"]:
         env.SetDefault(
             FAPDISTCOMSTR="\tFAPDIST\t${TARGET}",
@@ -256,6 +269,10 @@ def generate(env, **kw):
             APPCHECK_COMSTR="\tAPPCHK\t${SOURCE}",
         )
 
+    env.SetDefault(
+        EXT_APPS={},  # appid -> FlipperExternalAppInfo
+    )
+
     env.AddMethod(BuildAppElf)
     env.AddMethod(GetExtAppFromPath)
     env.Append(
diff --git a/scripts/requirements.txt b/scripts/requirements.txt
index 35cac7742..5b6fac5f7 100644
--- a/scripts/requirements.txt
+++ b/scripts/requirements.txt
@@ -1,7 +1,9 @@
-pyserial==3.5
+ansi==0.3.6
+black==22.6.0
+colorlog==6.7.0
 heatshrink2==0.11.0
 Pillow==9.1.1
-grpcio==1.47.0
-grpcio-tools==1.47.0
-protobuf==3.20.2
+protobuf==3.20.1
+pyserial==3.5
 python3-protobuf==2.5.0
+SCons==4.4.0
diff --git a/site_scons/commandline.scons b/site_scons/commandline.scons
index 8c52c4a7f..ca9c3628c 100644
--- a/site_scons/commandline.scons
+++ b/site_scons/commandline.scons
@@ -152,7 +152,7 @@ vars.AddVariables(
     PathVariable(
         "SVD_FILE",
         help="Path to SVD file",
-        validator=PathVariable.PathIsFile,
+        validator=PathVariable.PathAccept,
         default="",
     ),
     PathVariable(
diff --git a/site_scons/environ.scons b/site_scons/environ.scons
index 74819672c..128a667f1 100644
--- a/site_scons/environ.scons
+++ b/site_scons/environ.scons
@@ -62,8 +62,8 @@ coreenv = VAR_ENV.Clone(
     ABSPATHGETTERFUNC=extract_abs_dir_path,
     # Setting up temp file parameters - to overcome command line length limits
     TEMPFILEARGESCFUNC=tempfile_arg_esc_func,
-    FBT_SCRIPT_DIR=Dir("#/scripts"),
     ROOT_DIR=Dir("#"),
+    FBT_SCRIPT_DIR="${ROOT_DIR}/scripts",
 )
 
 # If DIST_SUFFIX is set in environment, is has precedence (set by CI)
diff --git a/site_scons/extapps.scons b/site_scons/extapps.scons
index bb1d65ffc..3d2a98788 100644
--- a/site_scons/extapps.scons
+++ b/site_scons/extapps.scons
@@ -1,4 +1,6 @@
+from dataclasses import dataclass, field
 from SCons.Errors import UserError
+from SCons.Node import NodeList
 
 
 Import("ENV")
@@ -7,14 +9,7 @@ from fbt.appmanifest import FlipperAppType
 
 appenv = ENV["APPENV"] = ENV.Clone(
     tools=[
-        (
-            "fbt_extapps",
-            {
-                "EXT_APPS_WORK_DIR": ENV.subst(
-                    "${BUILD_DIR}/.extapps",
-                )
-            },
-        ),
+        "fbt_extapps",
         "fbt_assets",
         "fbt_sdk",
     ]
@@ -60,22 +55,11 @@ appenv.AppendUnique(
 )
 
 
-extapps = appenv["_extapps"] = {
-    "compact": {},
-    "debug": {},
-    "validators": {},
-    "dist": {},
-    "resources_dist": None,
-    "sdk_tree": None,
-}
-
-
-def build_app_as_external(env, appdef):
-    compact_elf, debug_elf, validator = env.BuildAppElf(appdef)
-    extapps["compact"][appdef.appid] = compact_elf
-    extapps["debug"][appdef.appid] = debug_elf
-    extapps["validators"][appdef.appid] = validator
-    extapps["dist"][appdef.appid] = (appdef.fap_category, compact_elf)
+@dataclass
+class FlipperExtAppBuildArtifacts:
+    applications: dict = field(default_factory=dict)
+    resources_dist: NodeList = field(default_factory=NodeList)
+    sdk_tree: NodeList = field(default_factory=NodeList)
 
 
 apps_to_build_as_faps = [
@@ -85,38 +69,39 @@ apps_to_build_as_faps = [
 if appenv["DEBUG_TOOLS"]:
     apps_to_build_as_faps.append(FlipperAppType.DEBUG)
 
-for apptype in apps_to_build_as_faps:
-    for app in appenv["APPBUILD"].get_apps_of_type(apptype, True):
-        build_app_as_external(appenv, app)
+known_extapps = [
+    app
+    for apptype in apps_to_build_as_faps
+    for app in appenv["APPBUILD"].get_apps_of_type(apptype, True)
+]
 
 # Ugly access to global option
 if extra_app_list := GetOption("extra_ext_apps"):
-    for extra_app in extra_app_list.split(","):
-        build_app_as_external(appenv, appenv["APPMGR"].get(extra_app))
+    known_extapps.extend(map(appenv["APPMGR"].get, extra_app_list.split(",")))
+
+for app in known_extapps:
+    appenv.BuildAppElf(app)
 
 
 if appenv["FORCE"]:
-    appenv.AlwaysBuild(extapps["compact"].values())
+    appenv.AlwaysBuild(
+        list(app_artifact.compact for app_artifact in appenv["EXT_APPS"].values())
+    )
 
 
-# Deprecation stub
-def legacy_app_build_stub(**kw):
-    raise UserError(f"Target name 'firmware_extapps' is deprecated, use 'faps' instead")
+Alias(
+    "faps", list(app_artifact.validator for app_artifact in appenv["EXT_APPS"].values())
+)
 
-
-appenv.PhonyTarget("firmware_extapps", appenv.Action(legacy_app_build_stub, None))
-
-
-Alias("faps", extapps["compact"].values())
-Alias("faps", extapps["validators"].values())
-
-extapps["resources_dist"] = appenv.FapDist(appenv.Dir("#/assets/resources/apps"), [])
+extapps = FlipperExtAppBuildArtifacts()
+extapps.applications = appenv["EXT_APPS"]
+extapps.resources_dist = appenv.FapDist(appenv.Dir("#/assets/resources/apps"), [])
 
 if appsrc := appenv.subst("$APPSRC"):
     app_manifest, fap_file, app_validator = appenv.GetExtAppFromPath(appsrc)
     appenv.PhonyTarget(
         "launch_app",
-        '${PYTHON3} "${APP_RUN_SCRIPT}" ${SOURCE} --fap_dst_dir "/ext/apps/${FAP_CATEGORY}"',
+        '${PYTHON3} "${APP_RUN_SCRIPT}" "${SOURCE}" --fap_dst_dir "/ext/apps/${FAP_CATEGORY}"',
         source=fap_file,
         FAP_CATEGORY=app_manifest.fap_category,
     )
@@ -131,12 +116,14 @@ sdk_source = appenv.SDKPrebuilder(
     (appenv["SDK_HEADERS"], appenv["FW_ASSETS_HEADERS"]),
 )
 # Extra deps on headers included in deeper levels
+# Available on second and subsequent builds
 Depends(sdk_source, appenv.ProcessSdkDepends(f"{sdk_origin_path}.d"))
 
 appenv["SDK_DIR"] = appenv.Dir("${BUILD_DIR}/sdk")
-sdk_tree = extapps["sdk_tree"] = appenv.SDKTree(appenv["SDK_DIR"], sdk_origin_path)
+sdk_tree = appenv.SDKTree(appenv["SDK_DIR"], sdk_origin_path)
 # AlwaysBuild(sdk_tree)
 Alias("sdk_tree", sdk_tree)
+extapps.sdk_tree = sdk_tree
 
 sdk_apicheck = appenv.SDKSymUpdater(appenv["SDK_DEFINITION"], sdk_origin_path)
 Precious(sdk_apicheck)