diff --git a/applications/system/js_app/application.fam b/applications/system/js_app/application.fam
index 588ad03fae..74be8273db 100644
--- a/applications/system/js_app/application.fam
+++ b/applications/system/js_app/application.fam
@@ -70,3 +70,27 @@ App(
     requires=["js_app"],
     sources=["modules/js_submenu.c"],
 )
+
+App(
+    appid="js_blebeacon",
+    apptype=FlipperAppType.PLUGIN,
+    entry_point="js_blebeacon_ep",
+    requires=["js_app"],
+    sources=["modules/js_blebeacon.c"],
+)
+
+App(
+    appid="js_math",
+    apptype=FlipperAppType.PLUGIN,
+    entry_point="js_math_ep",
+    requires=["js_app"],
+    sources=["modules/js_math.c"],
+)
+
+App(
+    appid="js_keyboard",
+    apptype=FlipperAppType.PLUGIN,
+    entry_point="js_keyboard_ep",
+    requires=["js_app"],
+    sources=["modules/js_keyboard.c"],
+)
diff --git a/applications/system/js_app/examples/apps/Scripts/blebeacon.js b/applications/system/js_app/examples/apps/Scripts/blebeacon.js
new file mode 100644
index 0000000000..5e29ccbc12
--- /dev/null
+++ b/applications/system/js_app/examples/apps/Scripts/blebeacon.js
@@ -0,0 +1,51 @@
+let blebeacon = require("blebeacon");
+let math = require("math");
+
+let currentIndex = 0;
+let watchValues = [
+    0x1A, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08,
+    0x09, 0x0A, 0x0B, 0x0C, 0x11, 0x12, 0x13, 0x14, 0x15,
+    0x16, 0x17, 0x18, 0xE4, 0xE5, 0x1B, 0x1C, 0x1D, 0x1E,
+    0x20, 0xEC, 0xEF
+];
+
+function generateRandomMac() {
+    let mac = [];
+    for (let i = 0; i < 6; i++) {
+        mac.push(math.floor(math.random() * 256));
+    }
+    return Uint8Array(mac);
+}
+
+function sendRandomModelAdvertisement() {
+    let model = watchValues[currentIndex];
+
+    let packet = [
+        14, 0xFF, 0x75, 0x00, 0x01, 0x00, 0x02, 0x00, 0x01, 0x01, 0xFF, 0x00, 0x00, 0x43,
+        model
+    ];
+
+    let intervalMs = 50;
+
+    // Power level, min interval and max interval are optional
+    blebeacon.setConfig(generateRandomMac(), 0x1F, intervalMs, intervalMs * 3);
+
+    blebeacon.setData(Uint8Array(packet));
+
+    blebeacon.start();
+
+    print("Sent data for model ID " + to_string(model));
+
+    currentIndex = (currentIndex + 1) % watchValues.length;
+
+    delay(intervalMs);
+
+    blebeacon.stop();
+}
+
+// Make sure it resets at script exit, true will keep advertising in background
+blebeacon.keepAlive(true);
+
+while (true) {
+    sendRandomModelAdvertisement();
+}
\ No newline at end of file
diff --git a/applications/system/js_app/examples/apps/Scripts/keyboard.js b/applications/system/js_app/examples/apps/Scripts/keyboard.js
new file mode 100644
index 0000000000..a34607c299
--- /dev/null
+++ b/applications/system/js_app/examples/apps/Scripts/keyboard.js
@@ -0,0 +1,19 @@
+let keyboard = require("keyboard");
+
+keyboard.setHeader("Example Text Input");
+
+// Default text is optional
+let text = keyboard.text(100, "Default text", true);
+print("Got text:", text);
+
+keyboard.setHeader("Example Byte Input");
+
+// Default data is optional
+let data = keyboard.byte(6, Uint8Array([1, 2, 3, 4, 5, 6]));
+data = Uint8Array(data);
+let result = "0x";
+for (let i = 0; i < data.byteLength; i++) {
+    if (data[i] < 0x10) result += "0";
+    result += to_hex_string(data[i]);
+}
+print("Got data:", result);
\ No newline at end of file
diff --git a/applications/system/js_app/examples/apps/Scripts/math.js b/applications/system/js_app/examples/apps/Scripts/math.js
new file mode 100644
index 0000000000..49212f904a
--- /dev/null
+++ b/applications/system/js_app/examples/apps/Scripts/math.js
@@ -0,0 +1,47 @@
+let math = require("math");
+
+let absResult = math.abs(-5);
+let acosResult = math.acos(0.5);
+let acoshResult = math.acosh(2);
+let asinResult = math.asin(0.5);
+let asinhResult = math.asinh(2);
+let atanResult = math.atan(1);
+let atan2Result = math.atan2(1, 1);
+let atanhResult = math.atanh(0.5);
+let cbrtResult = math.cbrt(27);
+let ceilResult = math.ceil(5.3);
+let clz32Result = math.clz32(1);
+let cosResult = math.cos(math.PI);
+let expResult = math.exp(1);
+let floorResult = math.floor(5.7);
+let maxResult = math.max(3, 5);
+let minResult = math.min(3, 5);
+let powResult = math.pow(2, 3);
+let randomResult = math.random();
+let signResult = math.sign(-5);
+let sinResult = math.sin(math.PI / 2);
+let sqrtResult = math.sqrt(25);
+let truncResult = math.trunc(5.7);
+
+print("math.abs(-5):", absResult);
+print("math.acos(0.5):", acosResult);
+print("math.acosh(2):", acoshResult);
+print("math.asin(0.5):", asinResult);
+print("math.asinh(2):", asinhResult);
+print("math.atan(1):", atanResult);
+print("math.atan2(1, 1):", atan2Result);
+print("math.atanh(0.5):", atanhResult);
+print("math.cbrt(27):", cbrtResult);
+print("math.ceil(5.3):", ceilResult);
+print("math.clz32(1):", clz32Result);
+print("math.cos(math.PI):", cosResult);
+print("math.exp(1):", expResult);
+print("math.floor(5.7):", floorResult);
+print("math.max(3, 5):", maxResult);
+print("math.min(3, 5):", minResult);
+print("math.pow(2, 3):", powResult);
+print("math.random():", randomResult);
+print("math.sign(-5):", signResult);
+print("math.sin(math.PI/2):", sinResult);
+print("math.sqrt(25):", sqrtResult);
+print("math.trunc(5.7):", truncResult);
\ No newline at end of file
diff --git a/applications/system/js_app/examples/apps/Scripts/submenu.js b/applications/system/js_app/examples/apps/Scripts/submenu.js
index 4c0cd79d03..6744ca4526 100644
--- a/applications/system/js_app/examples/apps/Scripts/submenu.js
+++ b/applications/system/js_app/examples/apps/Scripts/submenu.js
@@ -8,4 +8,4 @@ submenu.setHeader("Select an option:");
 
 let result = submenu.show();
 
-print("Result: ", result);
+print("Result:", result);
diff --git a/applications/system/js_app/modules/js_blebeacon.c b/applications/system/js_app/modules/js_blebeacon.c
new file mode 100644
index 0000000000..35dbbb47b9
--- /dev/null
+++ b/applications/system/js_app/modules/js_blebeacon.c
@@ -0,0 +1,213 @@
+#include "../js_modules.h"
+#include <furi_hal_bt.h>
+#include <extra_beacon.h>
+
+typedef struct {
+    bool saved_prev_cfg;
+    bool prev_cfg_set;
+    GapExtraBeaconConfig prev_cfg;
+
+    bool saved_prev_data;
+    uint8_t prev_data[EXTRA_BEACON_MAX_DATA_SIZE];
+    uint8_t prev_data_len;
+
+    bool saved_prev_active;
+    bool prev_active;
+
+    bool keep_alive;
+} JsBlebeaconInst;
+
+static JsBlebeaconInst* get_this_ctx(struct mjs* mjs) {
+    mjs_val_t obj_inst = mjs_get(mjs, mjs_get_this(mjs), INST_PROP_NAME, ~0);
+    JsBlebeaconInst* storage = mjs_get_ptr(mjs, obj_inst);
+    furi_assert(storage);
+    return storage;
+}
+
+static void ret_bad_args(struct mjs* mjs, const char* error) {
+    mjs_prepend_errorf(mjs, MJS_BAD_ARGS_ERROR, "%s", error);
+    mjs_return(mjs, MJS_UNDEFINED);
+}
+
+static bool check_arg_count(struct mjs* mjs, size_t count) {
+    size_t num_args = mjs_nargs(mjs);
+    if(num_args != count) {
+        ret_bad_args(mjs, "Wrong argument count");
+        return false;
+    }
+    return true;
+}
+
+static bool get_int_arg(struct mjs* mjs, size_t index, uint8_t* value, bool error) {
+    mjs_val_t int_obj = mjs_arg(mjs, index);
+    if(!mjs_is_number(int_obj)) {
+        if(error) ret_bad_args(mjs, "Argument must be a number");
+        return false;
+    }
+    *value = mjs_get_int(mjs, int_obj);
+    return true;
+}
+
+static void js_blebeacon_set_config(struct mjs* mjs) {
+    JsBlebeaconInst* blebeacon = get_this_ctx(mjs);
+    if(mjs_nargs(mjs) < 1 || mjs_nargs(mjs) > 4) {
+        ret_bad_args(mjs, "Wrong argument count");
+        return;
+    }
+
+    char* mac = NULL;
+    size_t mac_len = 0;
+    mjs_val_t mac_arg = mjs_arg(mjs, 0);
+    if(mjs_is_typed_array(mac_arg)) {
+        if(mjs_is_data_view(mac_arg)) {
+            mac_arg = mjs_dataview_get_buf(mjs, mac_arg);
+        }
+        mac = mjs_array_buf_get_ptr(mjs, mac_arg, &mac_len);
+    }
+    if(!mac || mac_len != EXTRA_BEACON_MAC_ADDR_SIZE) {
+        ret_bad_args(mjs, "Wrong MAC address");
+        return;
+    }
+
+    uint8_t power = GapAdvPowerLevel_0dBm;
+    get_int_arg(mjs, 1, &power, false);
+    power = CLAMP(power, GapAdvPowerLevel_6dBm, GapAdvPowerLevel_Neg40dBm);
+
+    uint8_t intv_min = 50;
+    get_int_arg(mjs, 2, &intv_min, false);
+    intv_min = MAX(intv_min, 20);
+
+    uint8_t intv_max = 150;
+    get_int_arg(mjs, 3, &intv_max, false);
+    intv_max = MAX(intv_max, intv_min);
+
+    GapExtraBeaconConfig config = {
+        .min_adv_interval_ms = intv_min,
+        .max_adv_interval_ms = intv_max,
+        .adv_channel_map = GapAdvChannelMapAll,
+        .adv_power_level = power,
+        .address_type = GapAddressTypePublic,
+    };
+    memcpy(config.address, (uint8_t*)mac, sizeof(config.address));
+
+    if(!blebeacon->saved_prev_cfg) {
+        blebeacon->saved_prev_cfg = true;
+        const GapExtraBeaconConfig* prev_cfg_ptr = furi_hal_bt_extra_beacon_get_config();
+        if(prev_cfg_ptr) {
+            blebeacon->prev_cfg_set = true;
+            memcpy(&blebeacon->prev_cfg, prev_cfg_ptr, sizeof(blebeacon->prev_cfg));
+        } else {
+            blebeacon->prev_cfg_set = false;
+        }
+    }
+    furi_check(furi_hal_bt_extra_beacon_set_config(&config));
+}
+
+static void js_blebeacon_set_data(struct mjs* mjs) {
+    JsBlebeaconInst* blebeacon = get_this_ctx(mjs);
+    if(!check_arg_count(mjs, 1)) return;
+
+    char* data = NULL;
+    size_t data_len = 0;
+    mjs_val_t data_arg = mjs_arg(mjs, 0);
+    if(mjs_is_typed_array(data_arg)) {
+        if(mjs_is_data_view(data_arg)) {
+            data_arg = mjs_dataview_get_buf(mjs, data_arg);
+        }
+        data = mjs_array_buf_get_ptr(mjs, data_arg, &data_len);
+    }
+    if(!data) {
+        ret_bad_args(mjs, "Data must be a Uint8Array");
+        return;
+    }
+
+    if(!blebeacon->saved_prev_data) {
+        blebeacon->saved_prev_data = true;
+        blebeacon->prev_data_len = furi_hal_bt_extra_beacon_get_data(blebeacon->prev_data);
+    }
+    furi_check(furi_hal_bt_extra_beacon_set_data((uint8_t*)data, data_len));
+
+    mjs_return(mjs, MJS_UNDEFINED);
+}
+
+static void js_blebeacon_start(struct mjs* mjs) {
+    JsBlebeaconInst* blebeacon = get_this_ctx(mjs);
+    if(!check_arg_count(mjs, 0)) return;
+
+    if(!blebeacon->saved_prev_active) {
+        blebeacon->saved_prev_active = true;
+        blebeacon->prev_active = furi_hal_bt_extra_beacon_is_active();
+    }
+    furi_check(furi_hal_bt_extra_beacon_start());
+
+    mjs_return(mjs, MJS_UNDEFINED);
+}
+
+static void js_blebeacon_stop(struct mjs* mjs) {
+    JsBlebeaconInst* blebeacon = get_this_ctx(mjs);
+    if(!check_arg_count(mjs, 0)) return;
+    UNUSED(blebeacon);
+
+    furi_hal_bt_extra_beacon_stop();
+
+    mjs_return(mjs, MJS_UNDEFINED);
+}
+
+static void js_blebeacon_keep_alive(struct mjs* mjs) {
+    JsBlebeaconInst* blebeacon = get_this_ctx(mjs);
+    if(!check_arg_count(mjs, 1)) return;
+
+    mjs_val_t bool_obj = mjs_arg(mjs, 0);
+    blebeacon->keep_alive = mjs_get_bool(mjs, bool_obj);
+
+    mjs_return(mjs, MJS_UNDEFINED);
+}
+
+static void* js_blebeacon_create(struct mjs* mjs, mjs_val_t* object) {
+    JsBlebeaconInst* blebeacon = malloc(sizeof(JsBlebeaconInst));
+    mjs_val_t blebeacon_obj = mjs_mk_object(mjs);
+    mjs_set(mjs, blebeacon_obj, INST_PROP_NAME, ~0, mjs_mk_foreign(mjs, blebeacon));
+    mjs_set(mjs, blebeacon_obj, "setConfig", ~0, MJS_MK_FN(js_blebeacon_set_config));
+    mjs_set(mjs, blebeacon_obj, "setData", ~0, MJS_MK_FN(js_blebeacon_set_data));
+    mjs_set(mjs, blebeacon_obj, "start", ~0, MJS_MK_FN(js_blebeacon_start));
+    mjs_set(mjs, blebeacon_obj, "stop", ~0, MJS_MK_FN(js_blebeacon_stop));
+    mjs_set(mjs, blebeacon_obj, "keepAlive", ~0, MJS_MK_FN(js_blebeacon_keep_alive));
+    *object = blebeacon_obj;
+    return blebeacon;
+}
+
+static void js_blebeacon_destroy(void* inst) {
+    JsBlebeaconInst* blebeacon = inst;
+    if(!blebeacon->keep_alive) {
+        if(furi_hal_bt_extra_beacon_is_active()) {
+            furi_hal_bt_extra_beacon_stop();
+        }
+        if(blebeacon->saved_prev_cfg && blebeacon->prev_cfg_set) {
+            furi_check(furi_hal_bt_extra_beacon_set_config(&blebeacon->prev_cfg));
+        }
+        if(blebeacon->saved_prev_data) {
+            furi_check(
+                furi_hal_bt_extra_beacon_set_data(blebeacon->prev_data, blebeacon->prev_data_len));
+        }
+        if(blebeacon->prev_active) {
+            furi_check(furi_hal_bt_extra_beacon_start());
+        }
+    }
+    free(blebeacon);
+}
+
+static const JsModuleDescriptor js_blebeacon_desc = {
+    "blebeacon",
+    js_blebeacon_create,
+    js_blebeacon_destroy,
+};
+
+static const FlipperAppPluginDescriptor plugin_descriptor = {
+    .appid = PLUGIN_APP_ID,
+    .ep_api_version = PLUGIN_API_VERSION,
+    .entry_point = &js_blebeacon_desc,
+};
+
+const FlipperAppPluginDescriptor* js_blebeacon_ep(void) {
+    return &plugin_descriptor;
+}
\ No newline at end of file
diff --git a/applications/system/js_app/modules/js_keyboard.c b/applications/system/js_app/modules/js_keyboard.c
new file mode 100644
index 0000000000..8958dcaf8c
--- /dev/null
+++ b/applications/system/js_app/modules/js_keyboard.c
@@ -0,0 +1,195 @@
+#include "../js_modules.h"
+#include <gui/modules/text_input.h>
+#include <gui/modules/byte_input.h>
+#include <gui/view_dispatcher.h>
+
+#define membersof(x) (sizeof(x) / sizeof(x[0]))
+
+typedef struct {
+    char* data;
+    TextInput* text_input;
+    ByteInput* byte_input;
+    ViewDispatcher* view_dispatcher;
+    uint8_t* byteinput;
+} JsKeyboardInst;
+
+typedef enum {
+    JsKeyboardViewTextInput,
+    JsKeyboardViewByteInput,
+} JsKeyboardView;
+
+static void ret_bad_args(struct mjs* mjs, const char* error) {
+    mjs_prepend_errorf(mjs, MJS_BAD_ARGS_ERROR, "%s", error);
+    mjs_return(mjs, MJS_UNDEFINED);
+}
+
+static bool get_str_arg(struct mjs* mjs, size_t index, const char** value, bool error) {
+    mjs_val_t str_obj = mjs_arg(mjs, index);
+    if(!mjs_is_string(str_obj)) {
+        if(error) ret_bad_args(mjs, "Argument must be a string");
+        return false;
+    }
+    size_t str_len = 0;
+    *value = mjs_get_string(mjs, &str_obj, &str_len);
+    if((str_len == 0) || (*value == NULL)) {
+        if(error) ret_bad_args(mjs, "Bad string argument");
+        return false;
+    }
+    return true;
+}
+
+static bool get_int_arg(struct mjs* mjs, size_t index, size_t* value, bool error) {
+    mjs_val_t int_obj = mjs_arg(mjs, index);
+    if(!mjs_is_number(int_obj)) {
+        if(error) ret_bad_args(mjs, "Argument must be a number");
+        return false;
+    }
+    *value = mjs_get_int(mjs, int_obj);
+    return true;
+}
+
+static JsKeyboardInst* get_this_ctx(struct mjs* mjs) {
+    mjs_val_t obj_inst = mjs_get(mjs, mjs_get_this(mjs), INST_PROP_NAME, ~0);
+    JsKeyboardInst* storage = mjs_get_ptr(mjs, obj_inst);
+    furi_assert(storage);
+    return storage;
+}
+
+void text_input_callback(void* context) {
+    JsKeyboardInst* keyboard = (JsKeyboardInst*)context;
+    view_dispatcher_stop(keyboard->view_dispatcher);
+}
+
+void byte_input_callback(void* context) {
+    JsKeyboardInst* keyboard = (JsKeyboardInst*)context;
+    view_dispatcher_stop(keyboard->view_dispatcher);
+}
+
+static void js_keyboard_set_header(struct mjs* mjs) {
+    JsKeyboardInst* keyboard = get_this_ctx(mjs);
+
+    const char* header;
+    if(!get_str_arg(mjs, 0, &header, true)) return;
+
+    text_input_set_header_text(keyboard->text_input, header);
+    byte_input_set_header_text(keyboard->byte_input, header);
+
+    mjs_return(mjs, MJS_UNDEFINED);
+}
+
+static void js_keyboard_text(struct mjs* mjs) {
+    JsKeyboardInst* keyboard = get_this_ctx(mjs);
+
+    size_t input_length;
+    if(!get_int_arg(mjs, 0, &input_length, true)) return;
+    char* buffer = malloc(input_length);
+
+    const char* default_text = "";
+    bool clear_default = false;
+    if(get_str_arg(mjs, 1, &default_text, false)) {
+        strlcpy(buffer, default_text, input_length);
+        mjs_val_t bool_obj = mjs_arg(mjs, 2);
+        clear_default = mjs_get_bool(mjs, bool_obj);
+    }
+
+    view_dispatcher_attach_to_gui(
+        keyboard->view_dispatcher, furi_record_open(RECORD_GUI), ViewDispatcherTypeFullscreen);
+    furi_record_close(RECORD_GUI);
+
+    text_input_set_result_callback(
+        keyboard->text_input, text_input_callback, keyboard, buffer, input_length, clear_default);
+
+    view_dispatcher_switch_to_view(keyboard->view_dispatcher, JsKeyboardViewTextInput);
+
+    view_dispatcher_run(keyboard->view_dispatcher);
+
+    text_input_reset(keyboard->text_input);
+
+    mjs_return(mjs, mjs_mk_string(mjs, buffer, ~0, true));
+    free(buffer);
+}
+
+static void js_keyboard_byte(struct mjs* mjs) {
+    JsKeyboardInst* keyboard = get_this_ctx(mjs);
+
+    size_t input_length;
+    if(!get_int_arg(mjs, 0, &input_length, true)) return;
+    uint8_t* buffer = malloc(input_length);
+
+    mjs_val_t default_data_arg = mjs_arg(mjs, 1);
+    if(mjs_is_typed_array(default_data_arg)) {
+        if(mjs_is_data_view(default_data_arg)) {
+            default_data_arg = mjs_dataview_get_buf(mjs, default_data_arg);
+        }
+        size_t default_data_len = 0;
+        char* default_data = mjs_array_buf_get_ptr(mjs, default_data_arg, &default_data_len);
+        memcpy(buffer, (uint8_t*)default_data, MIN((size_t)input_length, default_data_len));
+    }
+
+    view_dispatcher_attach_to_gui(
+        keyboard->view_dispatcher, furi_record_open(RECORD_GUI), ViewDispatcherTypeFullscreen);
+    furi_record_close(RECORD_GUI);
+
+    byte_input_set_result_callback(
+        keyboard->byte_input, byte_input_callback, NULL, keyboard, buffer, input_length);
+
+    view_dispatcher_switch_to_view(keyboard->view_dispatcher, JsKeyboardViewByteInput);
+
+    view_dispatcher_run(keyboard->view_dispatcher);
+
+    byte_input_set_result_callback(keyboard->byte_input, NULL, NULL, NULL, NULL, 0);
+    byte_input_set_header_text(keyboard->byte_input, "");
+
+    mjs_return(mjs, mjs_mk_array_buf(mjs, (char*)buffer, input_length));
+    free(buffer);
+}
+
+static void* js_keyboard_create(struct mjs* mjs, mjs_val_t* object) {
+    JsKeyboardInst* keyboard = malloc(sizeof(JsKeyboardInst));
+    mjs_val_t keyboard_obj = mjs_mk_object(mjs);
+    mjs_set(mjs, keyboard_obj, INST_PROP_NAME, ~0, mjs_mk_foreign(mjs, keyboard));
+    mjs_set(mjs, keyboard_obj, "setHeader", ~0, MJS_MK_FN(js_keyboard_set_header));
+    mjs_set(mjs, keyboard_obj, "text", ~0, MJS_MK_FN(js_keyboard_text));
+    mjs_set(mjs, keyboard_obj, "byte", ~0, MJS_MK_FN(js_keyboard_byte));
+    keyboard->byte_input = byte_input_alloc();
+    keyboard->text_input = text_input_alloc();
+    keyboard->view_dispatcher = view_dispatcher_alloc();
+    view_dispatcher_enable_queue(keyboard->view_dispatcher);
+    view_dispatcher_add_view(
+        keyboard->view_dispatcher,
+        JsKeyboardViewTextInput,
+        text_input_get_view(keyboard->text_input));
+    view_dispatcher_add_view(
+        keyboard->view_dispatcher,
+        JsKeyboardViewByteInput,
+        byte_input_get_view(keyboard->byte_input));
+    *object = keyboard_obj;
+    return keyboard;
+}
+
+static void js_keyboard_destroy(void* inst) {
+    JsKeyboardInst* keyboard = inst;
+    view_dispatcher_remove_view(keyboard->view_dispatcher, JsKeyboardViewByteInput);
+    byte_input_free(keyboard->byte_input);
+    view_dispatcher_remove_view(keyboard->view_dispatcher, JsKeyboardViewTextInput);
+    text_input_free(keyboard->text_input);
+    view_dispatcher_free(keyboard->view_dispatcher);
+    free(keyboard->data);
+    free(keyboard);
+}
+
+static const JsModuleDescriptor js_keyboard_desc = {
+    "keyboard",
+    js_keyboard_create,
+    js_keyboard_destroy,
+};
+
+static const FlipperAppPluginDescriptor plugin_descriptor = {
+    .appid = PLUGIN_APP_ID,
+    .ep_api_version = PLUGIN_API_VERSION,
+    .entry_point = &js_keyboard_desc,
+};
+
+const FlipperAppPluginDescriptor* js_keyboard_ep(void) {
+    return &plugin_descriptor;
+}
\ No newline at end of file
diff --git a/applications/system/js_app/modules/js_math.c b/applications/system/js_app/modules/js_math.c
new file mode 100644
index 0000000000..80d97fb9cf
--- /dev/null
+++ b/applications/system/js_app/modules/js_math.c
@@ -0,0 +1,309 @@
+#include "../js_modules.h"
+#include "furi_hal_random.h"
+
+#define JS_MATH_PI (double)3.14159265358979323846
+#define JS_MATH_E (double)2.7182818284590452354
+
+static void ret_bad_args(struct mjs* mjs, const char* error) {
+    mjs_prepend_errorf(mjs, MJS_BAD_ARGS_ERROR, "%s", error);
+    mjs_return(mjs, mjs_mk_undefined());
+}
+
+static bool check_arg_count(struct mjs* mjs, size_t count) {
+    size_t num_args = mjs_nargs(mjs);
+    if(num_args != count) {
+        ret_bad_args(mjs, "Wrong argument count");
+        return false;
+    }
+    return true;
+}
+
+void js_math_abs(struct mjs* mjs) {
+    if(!check_arg_count(mjs, 1) || !mjs_is_number(mjs_arg(mjs, 0))) {
+        mjs_return(mjs, MJS_UNDEFINED);
+    }
+    double x = mjs_get_double(mjs, mjs_arg(mjs, 0));
+    mjs_return(mjs, x < 0 ? mjs_mk_number(mjs, -x) : mjs_arg(mjs, 0));
+}
+
+void js_math_acos(struct mjs* mjs) {
+    if(!check_arg_count(mjs, 1) || !mjs_is_number(mjs_arg(mjs, 0))) {
+        mjs_return(mjs, MJS_UNDEFINED);
+    }
+    double x = mjs_get_double(mjs, mjs_arg(mjs, 0));
+    if(x < -1 || x > 1) {
+        ret_bad_args(mjs, "Invalid input value for Math.acos");
+        mjs_return(mjs, MJS_UNDEFINED);
+    }
+    mjs_return(mjs, mjs_mk_number(mjs, JS_MATH_PI / (double)2 - atan(x / sqrt(1 - x * x))));
+}
+
+void js_math_acosh(struct mjs* mjs) {
+    if(!check_arg_count(mjs, 1) || !mjs_is_number(mjs_arg(mjs, 0))) {
+        mjs_return(mjs, MJS_UNDEFINED);
+    }
+    double x = mjs_get_double(mjs, mjs_arg(mjs, 0));
+    if(x < 1) {
+        ret_bad_args(mjs, "Invalid input value for Math.acosh");
+        mjs_return(mjs, MJS_UNDEFINED);
+    }
+    mjs_return(mjs, mjs_mk_number(mjs, log(x + sqrt(x * x - 1))));
+}
+
+void js_math_asin(struct mjs* mjs) {
+    if(!check_arg_count(mjs, 1) || !mjs_is_number(mjs_arg(mjs, 0))) {
+        mjs_return(mjs, MJS_UNDEFINED);
+    }
+    double x = mjs_get_double(mjs, mjs_arg(mjs, 0));
+    mjs_return(mjs, mjs_mk_number(mjs, atan(x / sqrt(1 - x * x))));
+}
+
+void js_math_asinh(struct mjs* mjs) {
+    if(!check_arg_count(mjs, 1) || !mjs_is_number(mjs_arg(mjs, 0))) {
+        mjs_return(mjs, MJS_UNDEFINED);
+    }
+    double x = mjs_get_double(mjs, mjs_arg(mjs, 0));
+    mjs_return(mjs, mjs_mk_number(mjs, log(x + sqrt(x * x + 1))));
+}
+
+void js_math_atan(struct mjs* mjs) {
+    if(!check_arg_count(mjs, 1) || !mjs_is_number(mjs_arg(mjs, 0))) {
+        mjs_return(mjs, MJS_UNDEFINED);
+    }
+    double x = mjs_get_double(mjs, mjs_arg(mjs, 0));
+    mjs_return(mjs, mjs_mk_number(mjs, atan(x)));
+}
+
+void js_math_atan2(struct mjs* mjs) {
+    if(!check_arg_count(mjs, 2) || !mjs_is_number(mjs_arg(mjs, 0)) ||
+       !mjs_is_number(mjs_arg(mjs, 1))) {
+        mjs_return(mjs, MJS_UNDEFINED);
+    }
+    double y = mjs_get_double(mjs, mjs_arg(mjs, 0));
+    double x = mjs_get_double(mjs, mjs_arg(mjs, 1));
+    mjs_return(mjs, mjs_mk_number(mjs, atan2(y, x)));
+}
+
+void js_math_atanh(struct mjs* mjs) {
+    if(!check_arg_count(mjs, 1) || !mjs_is_number(mjs_arg(mjs, 0))) {
+        mjs_return(mjs, MJS_UNDEFINED);
+    }
+    double x = mjs_get_double(mjs, mjs_arg(mjs, 0));
+    if(x <= -1 || x >= 1) {
+        ret_bad_args(mjs, "Invalid input value for Math.atanh");
+        mjs_return(mjs, MJS_UNDEFINED);
+    }
+    mjs_return(mjs, mjs_mk_number(mjs, (double)0.5 * log((1 + x) / (1 - x))));
+}
+
+void js_math_cbrt(struct mjs* mjs) {
+    if(!check_arg_count(mjs, 1) || !mjs_is_number(mjs_arg(mjs, 0))) {
+        mjs_return(mjs, MJS_UNDEFINED);
+    }
+    double x = mjs_get_double(mjs, mjs_arg(mjs, 0));
+    mjs_return(mjs, mjs_mk_number(mjs, pow(x, 1.0 / 3.0)));
+}
+
+void js_math_ceil(struct mjs* mjs) {
+    if(!check_arg_count(mjs, 1) || !mjs_is_number(mjs_arg(mjs, 0))) {
+        mjs_return(mjs, MJS_UNDEFINED);
+    }
+    double x = mjs_get_double(mjs, mjs_arg(mjs, 0));
+    mjs_return(mjs, mjs_mk_number(mjs, (int)(x + (double)0.5)));
+}
+
+void js_math_clz32(struct mjs* mjs) {
+    if(!check_arg_count(mjs, 1) || !mjs_is_number(mjs_arg(mjs, 0))) {
+        mjs_return(mjs, MJS_UNDEFINED);
+    }
+    unsigned int x = (unsigned int)mjs_get_int(mjs, mjs_arg(mjs, 0));
+    int count = 0;
+    while(x) {
+        x >>= 1;
+        count++;
+    }
+    mjs_return(mjs, mjs_mk_number(mjs, 32 - count));
+}
+
+void js_math_cos(struct mjs* mjs) {
+    if(!check_arg_count(mjs, 1) || !mjs_is_number(mjs_arg(mjs, 0))) {
+        mjs_return(mjs, MJS_UNDEFINED);
+    }
+    double x = mjs_get_double(mjs, mjs_arg(mjs, 0));
+    mjs_return(mjs, mjs_mk_number(mjs, cos(x)));
+}
+
+void js_math_exp(struct mjs* mjs) {
+    if(!check_arg_count(mjs, 1) || !mjs_is_number(mjs_arg(mjs, 0))) {
+        mjs_return(mjs, MJS_UNDEFINED);
+    }
+    double x = mjs_get_double(mjs, mjs_arg(mjs, 0));
+    double result = 1;
+    double term = 1;
+    for(int i = 1; i < 100; i++) {
+        term *= x / i;
+        result += term;
+    }
+    mjs_return(mjs, mjs_mk_number(mjs, result));
+}
+
+void js_math_floor(struct mjs* mjs) {
+    if(!check_arg_count(mjs, 1) || !mjs_is_number(mjs_arg(mjs, 0))) {
+        mjs_return(mjs, MJS_UNDEFINED);
+    }
+    double x = mjs_get_double(mjs, mjs_arg(mjs, 0));
+    mjs_return(mjs, mjs_mk_number(mjs, (int)x));
+}
+
+void js_math_log(struct mjs* mjs) {
+    if(!check_arg_count(mjs, 1) || !mjs_is_number(mjs_arg(mjs, 0))) {
+        mjs_return(mjs, MJS_UNDEFINED);
+    }
+    double x = mjs_get_double(mjs, mjs_arg(mjs, 0));
+    if(x <= 0) {
+        ret_bad_args(mjs, "Invalid input value for Math.log");
+        mjs_return(mjs, MJS_UNDEFINED);
+    }
+    double result = 0;
+    while(x >= JS_MATH_E) {
+        x /= JS_MATH_E;
+        result++;
+    }
+    mjs_return(mjs, mjs_mk_number(mjs, result + log(x)));
+}
+
+void js_math_max(struct mjs* mjs) {
+    if(!check_arg_count(mjs, 2) || !mjs_is_number(mjs_arg(mjs, 0)) ||
+       !mjs_is_number(mjs_arg(mjs, 1))) {
+        mjs_return(mjs, MJS_UNDEFINED);
+    }
+    double x = mjs_get_double(mjs, mjs_arg(mjs, 0));
+    double y = mjs_get_double(mjs, mjs_arg(mjs, 1));
+    mjs_return(mjs, mjs_mk_number(mjs, x > y ? x : y));
+}
+
+void js_math_min(struct mjs* mjs) {
+    if(!check_arg_count(mjs, 2) || !mjs_is_number(mjs_arg(mjs, 0)) ||
+       !mjs_is_number(mjs_arg(mjs, 1))) {
+        mjs_return(mjs, MJS_UNDEFINED);
+    }
+    double x = mjs_get_double(mjs, mjs_arg(mjs, 0));
+    double y = mjs_get_double(mjs, mjs_arg(mjs, 1));
+    mjs_return(mjs, mjs_mk_number(mjs, x < y ? x : y));
+}
+
+void js_math_pow(struct mjs* mjs) {
+    if(!check_arg_count(mjs, 2) || !mjs_is_number(mjs_arg(mjs, 0)) ||
+       !mjs_is_number(mjs_arg(mjs, 1))) {
+        mjs_return(mjs, MJS_UNDEFINED);
+    }
+    double base = mjs_get_double(mjs, mjs_arg(mjs, 0));
+    double exponent = mjs_get_double(mjs, mjs_arg(mjs, 1));
+    double result = 1;
+    for(int i = 0; i < exponent; i++) {
+        result *= base;
+    }
+    mjs_return(mjs, mjs_mk_number(mjs, result));
+}
+
+void js_math_random(struct mjs* mjs) {
+    if(!check_arg_count(mjs, 0)) {
+        mjs_return(mjs, MJS_UNDEFINED);
+    }
+    const uint32_t random_val = furi_hal_random_get();
+    double rnd = (double)random_val / RAND_MAX;
+    mjs_return(mjs, mjs_mk_number(mjs, rnd));
+}
+
+void js_math_sign(struct mjs* mjs) {
+    if(!check_arg_count(mjs, 1) || !mjs_is_number(mjs_arg(mjs, 0))) {
+        mjs_return(mjs, MJS_UNDEFINED);
+    }
+    double x = mjs_get_double(mjs, mjs_arg(mjs, 0));
+    mjs_return(mjs, mjs_mk_number(mjs, x == 0 ? 0 : (x < 0 ? -1 : 1)));
+}
+
+void js_math_sin(struct mjs* mjs) {
+    if(!check_arg_count(mjs, 1) || !mjs_is_number(mjs_arg(mjs, 0))) {
+        mjs_return(mjs, MJS_UNDEFINED);
+    }
+    double x = mjs_get_double(mjs, mjs_arg(mjs, 0));
+    double result = x;
+    double term = x;
+    for(int i = 1; i < 10; i++) {
+        term *= -x * x / ((2 * i) * (2 * i + 1));
+        result += term;
+    }
+    mjs_return(mjs, mjs_mk_number(mjs, result));
+}
+
+void js_math_sqrt(struct mjs* mjs) {
+    if(!check_arg_count(mjs, 1) || !mjs_is_number(mjs_arg(mjs, 0))) {
+        mjs_return(mjs, MJS_UNDEFINED);
+    }
+    double x = mjs_get_double(mjs, mjs_arg(mjs, 0));
+    if(x < 0) {
+        ret_bad_args(mjs, "Invalid input value for Math.sqrt");
+        mjs_return(mjs, MJS_UNDEFINED);
+    }
+    double result = 1;
+    while(result * result < x) {
+        result += (double)0.001;
+    }
+    mjs_return(mjs, mjs_mk_number(mjs, result));
+}
+
+void js_math_trunc(struct mjs* mjs) {
+    if(!check_arg_count(mjs, 1) || !mjs_is_number(mjs_arg(mjs, 0))) {
+        mjs_return(mjs, MJS_UNDEFINED);
+    }
+    double x = mjs_get_double(mjs, mjs_arg(mjs, 0));
+    mjs_return(mjs, mjs_mk_number(mjs, x < 0 ? ceil(x) : floor(x)));
+}
+
+static void* js_math_create(struct mjs* mjs, mjs_val_t* object) {
+    mjs_val_t math_obj = mjs_mk_object(mjs);
+    mjs_set(mjs, math_obj, "abs", ~0, MJS_MK_FN(js_math_abs));
+    mjs_set(mjs, math_obj, "acos", ~0, MJS_MK_FN(js_math_acos));
+    mjs_set(mjs, math_obj, "acosh", ~0, MJS_MK_FN(js_math_acosh));
+    mjs_set(mjs, math_obj, "asin", ~0, MJS_MK_FN(js_math_asin));
+    mjs_set(mjs, math_obj, "asinh", ~0, MJS_MK_FN(js_math_asinh));
+    mjs_set(mjs, math_obj, "atan", ~0, MJS_MK_FN(js_math_atan));
+    mjs_set(mjs, math_obj, "atan2", ~0, MJS_MK_FN(js_math_atan2));
+    mjs_set(mjs, math_obj, "atanh", ~0, MJS_MK_FN(js_math_atanh));
+    mjs_set(mjs, math_obj, "cbrt", ~0, MJS_MK_FN(js_math_cbrt));
+    mjs_set(mjs, math_obj, "ceil", ~0, MJS_MK_FN(js_math_ceil));
+    mjs_set(mjs, math_obj, "clz32", ~0, MJS_MK_FN(js_math_clz32));
+    mjs_set(mjs, math_obj, "cos", ~0, MJS_MK_FN(js_math_cos));
+    mjs_set(mjs, math_obj, "exp", ~0, MJS_MK_FN(js_math_exp));
+    mjs_set(mjs, math_obj, "floor", ~0, MJS_MK_FN(js_math_floor));
+    mjs_set(mjs, math_obj, "log", ~0, MJS_MK_FN(js_math_log));
+    mjs_set(mjs, math_obj, "max", ~0, MJS_MK_FN(js_math_max));
+    mjs_set(mjs, math_obj, "min", ~0, MJS_MK_FN(js_math_min));
+    mjs_set(mjs, math_obj, "pow", ~0, MJS_MK_FN(js_math_pow));
+    mjs_set(mjs, math_obj, "random", ~0, MJS_MK_FN(js_math_random));
+    mjs_set(mjs, math_obj, "sign", ~0, MJS_MK_FN(js_math_sign));
+    mjs_set(mjs, math_obj, "sin", ~0, MJS_MK_FN(js_math_sin));
+    mjs_set(mjs, math_obj, "sqrt", ~0, MJS_MK_FN(js_math_sqrt));
+    mjs_set(mjs, math_obj, "trunc", ~0, MJS_MK_FN(js_math_trunc));
+    mjs_set(mjs, math_obj, "PI", ~0, mjs_mk_number(mjs, JS_MATH_PI));
+    mjs_set(mjs, math_obj, "E", ~0, mjs_mk_number(mjs, JS_MATH_E));
+    *object = math_obj;
+    return (void*)1;
+}
+
+static const JsModuleDescriptor js_math_desc = {
+    "math",
+    js_math_create,
+    NULL,
+};
+
+static const FlipperAppPluginDescriptor plugin_descriptor = {
+    .appid = PLUGIN_APP_ID,
+    .ep_api_version = PLUGIN_API_VERSION,
+    .entry_point = &js_math_desc,
+};
+
+const FlipperAppPluginDescriptor* js_math_ep(void) {
+    return &plugin_descriptor;
+}
\ No newline at end of file
diff --git a/applications/system/js_app/modules/js_submenu.c b/applications/system/js_app/modules/js_submenu.c
index 08c62f404f..b87f34fa8b 100644
--- a/applications/system/js_app/modules/js_submenu.c
+++ b/applications/system/js_app/modules/js_submenu.c
@@ -9,6 +9,10 @@ typedef struct {
     uint32_t result;
 } JsSubmenuInst;
 
+typedef enum {
+    JsSubmenuViewSubmenu,
+} JsSubmenuView;
+
 static JsSubmenuInst* get_this_ctx(struct mjs* mjs) {
     mjs_val_t obj_inst = mjs_get(mjs, mjs_get_this(mjs), INST_PROP_NAME, ~0);
     JsSubmenuInst* storage = mjs_get_ptr(mjs, obj_inst);
@@ -98,7 +102,7 @@ static void js_submenu_show(struct mjs* mjs) {
         submenu->view_dispatcher, furi_record_open(RECORD_GUI), ViewDispatcherTypeFullscreen);
     furi_record_close(RECORD_GUI);
 
-    view_dispatcher_switch_to_view(submenu->view_dispatcher, 0);
+    view_dispatcher_switch_to_view(submenu->view_dispatcher, JsSubmenuViewSubmenu);
 
     view_dispatcher_run(submenu->view_dispatcher);
 
@@ -117,13 +121,15 @@ static void* js_submenu_create(struct mjs* mjs, mjs_val_t* object) {
     submenu->submenu = submenu_alloc();
     submenu->view_dispatcher = view_dispatcher_alloc();
     view_dispatcher_enable_queue(submenu->view_dispatcher);
-    view_dispatcher_add_view(submenu->view_dispatcher, 0, submenu_get_view(submenu->submenu));
+    view_dispatcher_add_view(
+        submenu->view_dispatcher, JsSubmenuViewSubmenu, submenu_get_view(submenu->submenu));
     *object = submenu_obj;
     return submenu;
 }
 
 static void js_submenu_destroy(void* inst) {
     JsSubmenuInst* submenu = inst;
+    view_dispatcher_remove_view(submenu->view_dispatcher, JsSubmenuViewSubmenu);
     submenu_free(submenu->submenu);
     view_dispatcher_free(submenu->view_dispatcher);
     free(submenu);