diff --git a/mousejacker/mousejacker.c b/mousejacker/mousejacker.c
index 99fade1..8a918c9 100644
--- a/mousejacker/mousejacker.c
+++ b/mousejacker/mousejacker.c
@@ -8,7 +8,8 @@
 #include <furi_hal_spi.h>
 #include <furi_hal_interrupt.h>
 #include <furi_hal_resources.h>
-#include <nrf24.h>
+#include "shared/lib/drivers/nrf24.h"
+#include "shared/shim/string.h"
 #include "mousejacker_ducky.h"
 
 #define TAG "mousejacker"
@@ -217,7 +218,7 @@ static bool load_addrs_file(Stream* file_stream) {
         bytes_read = stream_read(file_stream, file_buf, file_size);
         if(bytes_read == file_size) {
             FURI_LOG_D(TAG, "loading addrs file");
-            char* line = strtok((char*)file_buf, "\n");
+            char* line = mystrtok((char*)file_buf, "\n");
 
             while(line != NULL) {
                 line_ptr = strstr((char*)line, ",");
@@ -232,7 +233,7 @@ static bool load_addrs_file(Stream* file_stream) {
                 memset(loaded_addrs[counter], rate, 1);
                 memcpy(&loaded_addrs[counter++][1], addr, addrlen);
                 addrs_count++;
-                line = strtok(NULL, "\n");
+                line = mystrtok(NULL, "\n");
                 loaded = true;
             }
         } else {
@@ -391,4 +392,4 @@ int32_t mousejacker_app(void* p) {
     free(plugin_state);
 
     return 0;
-}
\ No newline at end of file
+}
diff --git a/mousejacker/mousejacker_ducky.c b/mousejacker/mousejacker_ducky.c
index f323a93..a63e42e 100644
--- a/mousejacker/mousejacker_ducky.c
+++ b/mousejacker/mousejacker_ducky.c
@@ -361,7 +361,7 @@ void mj_process_ducky_script(
 
     inject_packet(
         handle, addr, addr_size, rate, LOGITECH_HELLO, LOGITECH_HELLO_SIZE, plugin_state);
-    char* line = strtok(script, "\n");
+    char* line = mystrtok(script, "\n");
     while(line != NULL) {
         if(strcmp(&line[strlen(line) - 1], "\r") == 0) line[strlen(line) - 1] = (char)0;
 
@@ -369,7 +369,7 @@ void mj_process_ducky_script(
             FURI_LOG_D(TAG, "unable to process ducky script line: %s", line);
 
         prev_line = line;
-        line = strtok(NULL, "\n");
+        line = mystrtok(NULL, "\n");
     }
     build_hid_packet(0, 0, hid_payload);
     inject_packet(
@@ -380,4 +380,4 @@ void mj_process_ducky_script(
         hid_payload,
         LOGITECH_HID_TEMPLATE_SIZE,
         plugin_state); // empty hid packet at end
-}
\ No newline at end of file
+}
diff --git a/mousejacker/mousejacker_ducky.h b/mousejacker/mousejacker_ducky.h
index b4922ed..b763a65 100644
--- a/mousejacker/mousejacker_ducky.h
+++ b/mousejacker/mousejacker_ducky.h
@@ -5,10 +5,11 @@
 #include <furi_hal_spi.h>
 #include <stdio.h>
 #include <string.h>
-#include <nrf24.h>
+#include "shared/lib/drivers/nrf24.h"
 #include <furi.h>
 #include <furi_hal.h>
 #include <toolbox/stream/file_stream.h>
+#include "shared/shim/string.h"
 
 #ifdef __cplusplus
 extern "C" {
@@ -41,4 +42,4 @@ void mj_process_ducky_script(
 
 #ifdef __cplusplus
 }
-#endif
\ No newline at end of file
+#endif
diff --git a/mousejacker/shared b/mousejacker/shared
new file mode 120000
index 0000000..8fba6b6
--- /dev/null
+++ b/mousejacker/shared
@@ -0,0 +1 @@
+../shared
\ No newline at end of file
diff --git a/nrfsniff/nrfsniff.c b/nrfsniff/nrfsniff.c
index acf413d..293bafd 100644
--- a/nrfsniff/nrfsniff.c
+++ b/nrfsniff/nrfsniff.c
@@ -5,7 +5,8 @@
 #include <notification/notification_messages.h>
 #include <stdlib.h>
 
-#include <nrf24.h>
+#include "shared/lib/drivers/nrf24.h"
+#include "shared/shim/string.h"
 #include <toolbox/stream/file_stream.h>
 
 #define LOGITECH_MAX_CHANNEL 85
@@ -159,11 +160,11 @@ static bool save_addr_to_file(
     if(target_rate == 8) rate = 2;
     snprintf(ending, sizeof(ending), ",%d\n", rate);
     hexlify(data, size, addrline);
-    strcat(addrline, ending);
+    mystrcat(addrline, ending);
     linesize = strlen(addrline);
     strcpy(filepath, NRFSNIFF_APP_PATH_FOLDER);
-    strcat(filepath, "/");
-    strcat(filepath, NRFSNIFF_APP_FILENAME);
+    mystrcat(filepath, "/");
+    mystrcat(filepath, NRFSNIFF_APP_FILENAME);
     stream_seek(stream, 0, StreamOffsetFromStart);
 
     // check if address already exists in file
@@ -175,14 +176,14 @@ static bool save_addr_to_file(
             file_contents = malloc(file_size + 1);
             memset(file_contents, 0, file_size + 1);
             if(stream_read(stream, file_contents, file_size) > 0) {
-                char* line = strtok((char*)file_contents, "\n");
+                char* line = mystrtok((char*)file_contents, "\n");
 
                 while(line != NULL) {
                     if(!memcmp(line, addrline, 12)) {
                         found = true;
                         break;
                     }
-                    line = strtok(NULL, "\n");
+                    line = mystrtok(NULL, "\n");
                 }
             }
             free(file_contents);
diff --git a/nrfsniff/shared b/nrfsniff/shared
new file mode 120000
index 0000000..8fba6b6
--- /dev/null
+++ b/nrfsniff/shared
@@ -0,0 +1 @@
+../shared
\ No newline at end of file
diff --git a/shared/shim/string.c b/shared/shim/string.c
new file mode 100644
index 0000000..de11eb2
--- /dev/null
+++ b/shared/shim/string.c
@@ -0,0 +1,42 @@
+#include "string.h"
+
+#include <stdio.h>
+#include <string.h>
+#include <malloc.h>
+
+char* mystrtok(char* s, char* delm) {
+    static int currIndex = 0;
+    if(!s || !delm || s[currIndex] == '\0') return NULL;
+    char* W = (char*)malloc(sizeof(char) * 100);
+    int i = currIndex, k = 0, j = 0;
+
+    while(s[i] != '\0') {
+        j = 0;
+        while(delm[j] != '\0') {
+            if(s[i] != delm[j])
+                W[k] = s[i];
+            else
+                goto It;
+            j++;
+        }
+
+        i++;
+        k++;
+    }
+It:
+    W[i] = 0;
+    currIndex = i + 1;
+    //Iterator = ++ptr;
+    return W;
+}
+
+char* mystrcat(char *dest, const char *src)
+{
+    char *rdest = dest;
+
+    while (*dest)
+      dest++;
+    while ((*dest++ = *src++));
+
+    return rdest;
+}
diff --git a/shared/shim/string.h b/shared/shim/string.h
new file mode 100644
index 0000000..4d71369
--- /dev/null
+++ b/shared/shim/string.h
@@ -0,0 +1,4 @@
+#pragma once
+
+char* mystrtok(char* s, char* delm);
+char* mystrcat(char *dest, const char *src);