diff --git a/.gitea/workflows/actions.yaml b/.gitea/workflows/actions.yaml
index 380ea7c..ab2d2b8 100644
--- a/.gitea/workflows/actions.yaml
+++ b/.gitea/workflows/actions.yaml
@@ -9,7 +9,7 @@ jobs:
       - name: Check out repository code
         uses: actions/checkout@v3
       - name: Building binary with make
-        run: make -j$(nproc)
+        run: make USE_SQLITE3=1 -j$(nproc)
       - name: Testing binary
         run: make test
 
@@ -25,7 +25,7 @@ jobs:
         run: |
           mkdir build && \
           cd build && \
-          cmake .. && \
+          cmake -DUSE_SQLITE3=ON .. && \
           make -j$(nproc)
       - name: Testing binary
         run: |
@@ -41,7 +41,7 @@ jobs:
         uses: actions/checkout@v3
       - name: Building binary with meson
         run: |
-          meson setup build && \
+          meson setup build -Duse_sqlite3=true && \
           ninja -C build
       - name: Testing binary
         run: |
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 705d992..c7f4435 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -10,11 +10,21 @@ include_directories(./src/lib/ ${SQLite3_INCLUDE_DIRS})
 
 FILE(GLOB_RECURSE SOURCES src/*.c)
 
-find_package(SQLite3 REQUIRED)
+option(USE_SQLITE3 "Enable SQLite3 support" OFF)
+
+if(USE_SQLITE3)
+    find_package(SQLite3 REQUIRED)
+    pkg_check_modules(SQLITE3 REQUIRED sqlite3)
+    add_definitions(-DUSE_SQLITE3)
+endif()
 
 add_executable(
     auth_service
     ${SOURCES}
 )
 
-target_link_libraries(auth_service ssl crypto sqlite3 pthread)
+if(USE_SQLITE3)
+    target_link_libraries(auth_service ssl crypto sqlite3 pthread)
+else()
+    target_link_libraries(auth_service ssl crypto pthread)
+endif()
diff --git a/Makefile b/Makefile
index e1bf876..d2dfa18 100644
--- a/Makefile
+++ b/Makefile
@@ -1,13 +1,19 @@
 CC = gcc
 CFLAGS = -Wall -g -std=gnu2x -DMG_TLS=MG_TLS_OPENSSL -ffunction-sections -fdata-sections
 LDFLAGS = -Wl,--gc-sections
-LIBS = -lpthread -lcrypto -lssl -lsqlite3
 INCLUDES = -I./src/lib -I./src
 SRCS = $(wildcard src/*/*.c src/*.c)
 OBJS = $(SRCS:.c=.o)
 TARGET = auth_service
 BUILD_DIR=./build
 CROSS_COMPILE =
+LIBS = -lpthread -lcrypto -lssl
+USE_SQLITE3 ?= 0
+
+ifeq ($(USE_SQLITE3), 1)
+	CFLAGS += -DUSE_SQLITE3
+	LIBS += -lsqlite3
+endif
 
 all: $(TARGET)
 
diff --git a/meson.build b/meson.build
index da3fb9a..6c91083 100644
--- a/meson.build
+++ b/meson.build
@@ -1,8 +1,20 @@
 project('auth_service', 'c', default_options: ['c_std=gnu2x'])
 include_dirs = include_directories('src', 'src/lib')
-deps = [dependency('openssl'), dependency('sqlite3')]
-extra_c_args = [ '-ffunction-sections', '-fdata-sections' ]
-extra_c_link_args = [ '-Wl,--gc-sections' ]
+deps = [dependency('openssl')]
+extra_c_args = ['-ffunction-sections', '-fdata-sections']
+extra_c_link_args = ['-Wl,--gc-sections']
+
+sqlite3_dep = dependency('sqlite3', required: false)
+use_sqlite3 = get_option('use_sqlite3')
+
+if use_sqlite3
+  if not sqlite3_dep.found()
+    error('SQLite3 requested but not found')
+  endif
+  deps += sqlite3_dep
+  add_project_arguments('-DUSE_SQLITE3', language: 'c')
+endif
+
 executable(
   'auth_service',
   'src/main.c',
@@ -38,5 +50,5 @@ executable(
   include_directories: include_dirs,
   dependencies: deps,
   c_args: extra_c_args,
-  link_args: extra_c_link_args
+  link_args: extra_c_link_args,
 )
diff --git a/meson_options.txt b/meson_options.txt
new file mode 100644
index 0000000..ddd46af
--- /dev/null
+++ b/meson_options.txt
@@ -0,0 +1 @@
+option('use_sqlite3', type: 'boolean', value: false, description: 'Enable SQLite3 support')
diff --git a/src/database.c b/src/database.c
index 18e89cf..11ebe10 100644
--- a/src/database.c
+++ b/src/database.c
@@ -7,20 +7,27 @@
 #include "config.h"
 #include "sql.h"
 
-sqlite3* db = nullptr;
+#ifdef USE_SQLITE3
+sqlite3 *db = nullptr;
 pthread_mutex_t db_mutex = PTHREAD_MUTEX_INITIALIZER;
+#endif
 
 void init_db() {
+#ifdef USE_SQLITE3
   if (sqlite3_open(cm_get_parameter_as_string(config, "database"), &db) !=
       SQLITE_OK) {
     fprintf(stderr, "Cannot open database: %s\n", sqlite3_errmsg(db));
     sqlite3_close(db);
     exit(1);
   }
+#else
+  return;
+#endif
 }
 
 void migrate_db() {
-  char* err_msg = 0;
+#ifdef USE_SQLITE3
+  char *err_msg = 0;
   pthread_mutex_lock(&db_mutex);
   if (sqlite3_exec(db, CREATE_TABLE_USERS, nullptr, nullptr, &err_msg) !=
       SQLITE_OK) {
@@ -30,18 +37,21 @@ void migrate_db() {
     exit(1);
   }
   pthread_mutex_unlock(&db_mutex);
+#else
+  return;
+#endif
 }
 
 // Вспомогательная функция для экранирования специальных символов в JSON
-char* json_escape(const char* str) {
+char *json_escape(const char *str) {
   if (!str) return NULL;
 
   size_t len = strlen(str);
   // Выделяем память с запасом (каждый символ может быть экранирован)
-  char* escaped = malloc(len * 6 + 1);
+  char *escaped = malloc(len * 6 + 1);
   if (!escaped) return NULL;
 
-  char* p = escaped;
+  char *p = escaped;
   for (size_t i = 0; i < len; i++) {
     switch (str[i]) {
       case '\"':
@@ -74,7 +84,7 @@ char* json_escape(const char* str) {
         break;
       default:
         if (str[i] < 0x20) {
-          sprintf(p, "\\u%04x", (unsigned char)str[i]);
+          sprintf(p, "\\u%04x", (unsigned char) str[i]);
           p += 6;
         } else {
           *p++ = str[i];
@@ -84,4 +94,4 @@ char* json_escape(const char* str) {
   *p = '\0';
 
   return escaped;
-}
\ No newline at end of file
+}
diff --git a/src/database.h b/src/database.h
index 09aa3b3..5011be9 100644
--- a/src/database.h
+++ b/src/database.h
@@ -1,11 +1,13 @@
 #pragma once
 
 #include <pthread.h>
-#include <sqlite3.h>
 
-extern sqlite3* db;
+#ifdef USE_SQLITE3
+#include <sqlite3.h>
+extern sqlite3 *db;
 extern pthread_mutex_t db_mutex;
+#endif
 
 void init_db();
 void migrate_db();
-char* json_escape(const char* str);
\ No newline at end of file
+char *json_escape(const char *str);
diff --git a/src/db_delete_user.c b/src/db_delete_user.c
index 5781098..cc65f87 100644
--- a/src/db_delete_user.c
+++ b/src/db_delete_user.c
@@ -3,6 +3,7 @@
 #include "user.h"
 
 bool db_delete_user(const int id) {
+#ifdef USE_SQLITE3
   pthread_mutex_lock(&db_mutex);
   if (!db) {
     fprintf(stderr, "Database not initialized\n");
@@ -42,4 +43,7 @@ bool db_delete_user(const int id) {
 
   pthread_mutex_unlock(&db_mutex);
   return true;
+#else
+  return true;
+#endif
 }
diff --git a/src/db_get_all_users.c b/src/db_get_all_users.c
index 9afe5da..c51c9bd 100644
--- a/src/db_get_all_users.c
+++ b/src/db_get_all_users.c
@@ -5,6 +5,7 @@
 #include "user.h"
 
 char *db_get_all_users() {
+#ifdef USE_SQLITE3
   pthread_mutex_lock(&db_mutex);
   if (!db) {
     fprintf(stderr, "Database not initialized\n");
@@ -41,9 +42,9 @@ char *db_get_all_users() {
     const unsigned char *group = sqlite3_column_text(stmt, 4);
     int is_superuser = sqlite3_column_int(stmt, 5);
 
-    char *escaped_username = json_escape((const char *)username);
-    char *escaped_email = json_escape((const char *)email);
-    char *escaped_group = json_escape((const char *)group);
+    char *escaped_username = json_escape((const char *) username);
+    char *escaped_email = json_escape((const char *) email);
+    char *escaped_group = json_escape((const char *) group);
     if (!escaped_username || !escaped_email || !escaped_group) {
       free(escaped_username);
       free(escaped_email);
@@ -97,4 +98,7 @@ char *db_get_all_users() {
   sqlite3_finalize(stmt);
   pthread_mutex_unlock(&db_mutex);
   return result;
-}
\ No newline at end of file
+#else
+  return "";
+#endif
+}
diff --git a/src/db_get_user_by_id.c b/src/db_get_user_by_id.c
index 46776e5..6a82392 100644
--- a/src/db_get_user_by_id.c
+++ b/src/db_get_user_by_id.c
@@ -3,6 +3,7 @@
 #include "user.h"
 
 User *db_get_user_by_id(const int id) {
+#ifdef USE_SQLITE3
   User *user = nullptr;
   pthread_mutex_lock(&db_mutex);
   if (!db) {
@@ -27,8 +28,8 @@ User *db_get_user_by_id(const int id) {
     const unsigned char *db_password = sqlite3_column_text(stmt, 3);
     const unsigned char *db_group = sqlite3_column_text(stmt, 4);
     int db_is_superuser = sqlite3_column_int(stmt, 5);
-    user = new_user(id, (char *)db_username, (char *)db_password,
-                    (char *)db_email, (char *)db_group, db_is_superuser);
+    user = new_user(id, (char *) db_username, (char *) db_password,
+                    (char *) db_email, (char *) db_group, db_is_superuser);
   }
 
   if (rc != SQLITE_DONE) {
@@ -41,4 +42,8 @@ User *db_get_user_by_id(const int id) {
 
   pthread_mutex_unlock(&db_mutex);
   return user;
+#else
+  User *asdf = new_user(0, "asdf", "asdf", "asdf", "asdf", false);
+  return asdf;
+#endif
 }
diff --git a/src/db_get_user_by_username.c b/src/db_get_user_by_username.c
index cd97d79..740f184 100644
--- a/src/db_get_user_by_username.c
+++ b/src/db_get_user_by_username.c
@@ -3,6 +3,7 @@
 #include "user.h"
 
 User *db_get_user_by_username(const char *username) {
+#ifdef USE_SQLITE3
   User *user = nullptr;
   pthread_mutex_lock(&db_mutex);
   if (!db) {
@@ -28,8 +29,8 @@ User *db_get_user_by_username(const char *username) {
     const unsigned char *db_password = sqlite3_column_text(stmt, 3);
     const unsigned char *db_group = sqlite3_column_text(stmt, 4);
     int db_is_superuser = sqlite3_column_int(stmt, 5);
-    user = new_user(id, (char *)db_username, (char *)db_password,
-                    (char *)db_email, (char *)db_group, db_is_superuser);
+    user = new_user(id, (char *) db_username, (char *) db_password,
+                    (char *) db_email, (char *) db_group, db_is_superuser);
   }
 
   if (rc != SQLITE_DONE) {
@@ -41,4 +42,8 @@ User *db_get_user_by_username(const char *username) {
 
   pthread_mutex_unlock(&db_mutex);
   return user;
+#else
+  User *asdf = new_user(0, "asdf", "asdf", "asdf", "asdf", false);
+  return asdf;
+#endif
 }
diff --git a/src/db_get_user_field_by_id.c b/src/db_get_user_field_by_id.c
index 2cf849b..5ac0cd4 100644
--- a/src/db_get_user_field_by_id.c
+++ b/src/db_get_user_field_by_id.c
@@ -5,6 +5,7 @@
 #include "user.h"
 
 char *db_get_user_field_by_id(const int id, const char *field) {
+#ifdef USE_SQLITE3
   char *password = nullptr;
   pthread_mutex_lock(&db_mutex);
   if (!db) {
@@ -25,9 +26,9 @@ char *db_get_user_field_by_id(const int id, const char *field) {
   rc = sqlite3_step(stmt);
   if (rc == SQLITE_ROW) {
     const unsigned char *db_password = sqlite3_column_text(stmt, 0);
-    password = malloc(strlen((const char *)db_password) + 1);
+    password = malloc(strlen((const char *) db_password) + 1);
     if (password) {
-      strcpy(password, (const char *)db_password);
+      strcpy(password, (const char *) db_password);
     }
     sqlite3_finalize(stmt);
   } else if (rc == SQLITE_DONE) {
@@ -43,4 +44,7 @@ char *db_get_user_field_by_id(const int id, const char *field) {
   }
   pthread_mutex_unlock(&db_mutex);
   return password;
+#else
+  return "";
+#endif
 }
diff --git a/src/db_get_users_from_file.c b/src/db_get_users_from_file.c
index 79db265..a76bbd3 100644
--- a/src/db_get_users_from_file.c
+++ b/src/db_get_users_from_file.c
@@ -1,5 +1,5 @@
 #include <cJSON.h>
-#include <sqlite3.h>
+// #include <sqlite3.h>
 
 #include "file.h"
 #include "user.h"
diff --git a/src/db_insert_user.c b/src/db_insert_user.c
index d293129..6812c95 100644
--- a/src/db_insert_user.c
+++ b/src/db_insert_user.c
@@ -5,6 +5,7 @@
 User *db_insert_user(const char *username, const char *email,
                      const char *password, const char *group,
                      const bool *is_superuser) {
+#ifdef USE_SQLITE3
   pthread_mutex_lock(&db_mutex);
   if (!db) {
     fprintf(stderr, "Databse not initialized\n");
@@ -60,4 +61,8 @@ User *db_insert_user(const char *username, const char *email,
   User *new_db_user =
       new_user(inserted_id, username, email, password, group, is_superuser);
   return new_db_user;
+#else
+  User *asdf = new_user(0, "asdf", "asdf", "asdf", "asdf", false);
+  return asdf;
+#endif
 }
diff --git a/src/db_update_user.c b/src/db_update_user.c
index 9215d22..4e9ca24 100644
--- a/src/db_update_user.c
+++ b/src/db_update_user.c
@@ -5,6 +5,7 @@
 User *db_update_user(const int userid, const char *username, const char *email,
                      const char *password, const char *group,
                      const bool *is_superuser) {
+#ifdef USE_SQLITE3
   pthread_mutex_lock(&db_mutex);
   if (!db) {
     fprintf(stderr, "Databse not initialized\n");
@@ -52,4 +53,8 @@ User *db_update_user(const int userid, const char *username, const char *email,
   }
   pthread_mutex_unlock(&db_mutex);
   return new_user(userid, username, email, password, group, is_superuser);
+#else
+  User *asdf = new_user(0, "asdf", "asdf", "asdf", "asdf", false);
+  return asdf;
+#endif
 }
diff --git a/src/db_update_user_field.c b/src/db_update_user_field.c
index 2fb94fa..7f8c31e 100644
--- a/src/db_update_user_field.c
+++ b/src/db_update_user_field.c
@@ -3,6 +3,7 @@
 #include "user.h"
 
 bool db_update_user_field(const int id, const char *field, const char *value) {
+#ifdef USE_SQLITE3
   pthread_mutex_lock(&db_mutex);
   if (!db || !field || !value) {
     fprintf(stderr, "invalid parameters\n");
@@ -32,4 +33,7 @@ bool db_update_user_field(const int id, const char *field, const char *value) {
   }
   pthread_mutex_unlock(&db_mutex);
   return sqlite3_changes(db) > 0;
+#else
+  return 0;
+#endif
 }
diff --git a/src/main.c b/src/main.c
index 15bbb67..a0e3754 100644
--- a/src/main.c
+++ b/src/main.c
@@ -1,6 +1,9 @@
 #include <colors.h>
 #include <mongoose.h>
+
+#ifdef USE_SQLITE3
 #include <sqlite3.h>
+#endif
 
 #include "config.h"
 #include "cors.h"
@@ -67,7 +70,7 @@ int main(void) {
   migrate_db();
   const char *default_users_filename =
       cm_get_parameter_as_string(config, "default_users_file");
-  if (default_users_filename) db_get_users_from_file("users.json");
+  if (default_users_filename) db_get_users_from_file(default_users_filename);
 
   struct mg_mgr mgr;
   mg_log_set(MG_LL_DEBUG);
diff --git a/src/user.h b/src/user.h
index 85fb364..381dacc 100644
--- a/src/user.h
+++ b/src/user.h
@@ -2,7 +2,10 @@
 
 #include <cJSON.h>
 #include <mongoose.h>
+
+#ifdef USE_SQLITE3
 #include <sqlite3.h>
+#endif
 
 #define HTTP_HEADERS \
   "Content-Type: application/json\r\nAccess-Control-Allow-Origin: *\r\n"