diff --git a/.github/workflows/linux_dev.yml b/.github/workflows/linux_dev.yml
index 36902f3..3e45e57 100644
--- a/.github/workflows/linux_dev.yml
+++ b/.github/workflows/linux_dev.yml
@@ -32,7 +32,7 @@ jobs:
                sudo apt-get update
                sudo apt-get install -y \
                git cmake make ccache \
-               clang 
+               clang sqlite3
 
         - name: Install Qt
           uses: jurplel/install-qt-action@v4
diff --git a/.gitignore b/.gitignore
index 71a1c84..a59784a 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,4 @@
 compile_commands.json
 build
-.cache
\ No newline at end of file
+.cache
+*.db
\ No newline at end of file
diff --git a/CMakeLists.txt b/CMakeLists.txt
index de91c32..0d3d0b3 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -6,6 +6,7 @@ set(CMAKE_C_STANDARD_REQUIRED 99)
 
 set(CMAKE_AUTOMOC ON)
 find_package(Qt6 REQUIRED COMPONENTS Widgets Gui Core)
+find_package(SQLite3 REQUIRED)
 
 set(RUST_BACKEND_DIR ${CMAKE_CURRENT_SOURCE_DIR}/src/back_end)
 
@@ -35,6 +36,7 @@ target_link_libraries(
     PRIVATE Qt6::Widgets
     PRIVATE Qt6::Core
     PRIVATE Qt6::Gui
+    PRIVATE SQLite::SQLite3
     PRIVATE ${RUST_BACKEND_LIB}
 )
 
diff --git a/scripts/linux_deploy.sh b/scripts/linux_deploy.sh
index 13c17aa..050b8b7 100755
--- a/scripts/linux_deploy.sh
+++ b/scripts/linux_deploy.sh
@@ -8,7 +8,7 @@ nproc=$(nproc)
 install_dependency() {
     sudo apt-get update
     sudo apt-get install -y git cmake \
-    clang 
+    clang sqlite3
 }
 
 function check() {
diff --git a/src/back_end/Cargo.lock b/src/back_end/Cargo.lock
index 7041ee9..36efeb6 100644
--- a/src/back_end/Cargo.lock
+++ b/src/back_end/Cargo.lock
@@ -8,6 +8,7 @@ version = "1.0.0"
 dependencies = [
  "dirs",
  "serde",
+ "sqlite",
  "toml",
  "webbrowser",
 ]
@@ -30,6 +31,15 @@ version = "1.10.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d71b6127be86fdcfddb610f7182ac57211d4b18a3e9c82eb2d17662f2227ad6a"
 
+[[package]]
+name = "cc"
+version = "1.2.33"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3ee0f8803222ba5a7e2777dd72ca451868909b1ac410621b676adf07280e9b5f"
+dependencies = [
+ "shlex",
+]
+
 [[package]]
 name = "cesu8"
 version = "1.1.0"
@@ -364,6 +374,12 @@ version = "2.3.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "e3148f5046208a5d56bcfc03053e3ca6334e51da8dfb19b6cdc8b306fae3283e"
 
+[[package]]
+name = "pkg-config"
+version = "0.3.32"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7edddbd0b52d732b21ad9a5fab5c704c14cd949e5e9a1ec5929a24fded1b904c"
+
 [[package]]
 name = "potential_utf"
 version = "0.1.2"
@@ -440,12 +456,46 @@ dependencies = [
  "serde",
 ]
 
+[[package]]
+name = "shlex"
+version = "1.3.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0fda2ff0d084019ba4d7c6f371c95d8fd75ce3524c3cb8fb653a3023f6323e64"
+
 [[package]]
 name = "smallvec"
 version = "1.15.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "67b1b7a3b5fe4f1376887184045fcf45c69e92af734b7aaddc05fb777b6fbd03"
 
+[[package]]
+name = "sqlite"
+version = "0.37.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f66e9c01a11936154f3910dbba732c01f8b591543bc4d6672bddee79fd9c4783"
+dependencies = [
+ "sqlite3-sys",
+]
+
+[[package]]
+name = "sqlite3-src"
+version = "0.7.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e5b6d3c860886b0a33e69e421796a5f4a27f23597a182c2450f6d7ace5103120"
+dependencies = [
+ "cc",
+ "pkg-config",
+]
+
+[[package]]
+name = "sqlite3-sys"
+version = "0.18.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a7781d97adc13a1d5081127a9ee29afad8427f3757bd984daf814d8265267039"
+dependencies = [
+ "sqlite3-src",
+]
+
 [[package]]
 name = "stable_deref_trait"
 version = "1.2.0"
diff --git a/src/back_end/Cargo.toml b/src/back_end/Cargo.toml
index db09fdb..7ad568b 100644
--- a/src/back_end/Cargo.toml
+++ b/src/back_end/Cargo.toml
@@ -12,5 +12,6 @@ panic = "abort"
 [dependencies]
 dirs = "6.0.0"
 serde = { version = "1.0.219", features = ["derive"] }
+sqlite = "0.37.0"
 toml = "0.9.5"
 webbrowser = "1.0.5"
diff --git a/src/back_end/src/lib.rs b/src/back_end/src/lib.rs
index 80e9b91..95d6be0 100644
--- a/src/back_end/src/lib.rs
+++ b/src/back_end/src/lib.rs
@@ -4,6 +4,7 @@ pub mod utils {
     pub mod browser;
     pub mod fs_utils;
     pub mod memory;
+    pub mod sqlite;
 }
 
 pub mod internal {
diff --git a/src/back_end/src/utils/sqlite.rs b/src/back_end/src/utils/sqlite.rs
new file mode 100644
index 0000000..884f4eb
--- /dev/null
+++ b/src/back_end/src/utils/sqlite.rs
@@ -0,0 +1,48 @@
+use sqlite::Connection;
+use std::ffi::{CStr, c_char};
+
+#[repr(C)]
+pub enum InitDatabaseStatus {
+    Ok,
+    CreateDatabaseFailed,
+    CStrConvertFailed,
+    ExecuteSqlFailed,
+}
+
+const INIT_QUERY: &str = r"--sql
+	CREATE TABLE IF NOT EXISTS clipboard_cache (
+		id INTEGER PRIMARY KEY AUTOINCREMENT,
+		content_hash TEXT NOT NULL UNIQUE,
+		time DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP,
+		content TEXT NOT NULL,
+		type TEXT NOT NULL,
+		is_pinned BOOLEAN NOT NULL DEFAULT FALSE
+	);
+";
+
+#[unsafe(no_mangle)]
+/// # Safety
+/// Careful with unsafe context & raw pointers.
+pub unsafe extern "C" fn raw_init_clipboard_cache(
+    file_path: *const c_char,
+) -> InitDatabaseStatus {
+    unsafe {
+        use InitDatabaseStatus as Status;
+
+        let Ok(file_path_cstr) = CStr::from_ptr(file_path).to_str() else {
+            return Status::CStrConvertFailed;
+        };
+
+        let Ok(sql) = Connection::open(file_path_cstr) else {
+            return Status::CreateDatabaseFailed;
+        };
+
+        let is_err = sql.execute(INIT_QUERY).is_err();
+
+        if is_err {
+            return Status::ExecuteSqlFailed;
+        }
+
+        Status::Ok
+    }
+}
diff --git a/tests-ffi/sqlite.cxx b/tests-ffi/sqlite.cxx
new file mode 100644
index 0000000..12251f0
--- /dev/null
+++ b/tests-ffi/sqlite.cxx
@@ -0,0 +1,27 @@
+
+#include <cassert>
+#include <cstdint>
+using std::uint8_t;
+
+extern "C" enum class InitDatabaseStatus : uint8_t {
+	OK,
+	CREATE_DATABASE_FAILED,
+	C_STR_CONVERT_FAILED,
+	EXECUTE_SQL_FAILED
+};
+
+extern "C" InitDatabaseStatus raw_init_clipboard_cache(const char* path);
+
+int main() {
+	using Status = InitDatabaseStatus;
+
+	const char* test_path = "test_init.db";
+	auto status = raw_init_clipboard_cache(test_path);
+
+	assert(status != Status::CREATE_DATABASE_FAILED);
+	assert(status != Status::C_STR_CONVERT_FAILED);
+	assert(status != Status::EXECUTE_SQL_FAILED);
+	assert(status == Status::OK);
+
+	return 0;
+}
\ No newline at end of file
diff --git a/tests-ffi/tests.sh b/tests-ffi/tests.sh
index 370b347..8ee3357 100755
--- a/tests-ffi/tests.sh
+++ b/tests-ffi/tests.sh
@@ -32,6 +32,7 @@ function run_ffi_test() {
 	local clang_cxx="clang++"
 	local static_lib_path="../src/back_end/target/debug/libback_end.a"
 	local build_dir="build"
+	local sqlite_lib="sqlite3"
 	check "$clang_cxx"
 
 	echo -e "\e[0;32m[+] Build backend:\e[0;37m"
@@ -46,7 +47,7 @@ function run_ffi_test() {
 		build_output=$(basename "$file" ".cxx")
 		file_name=$(basename "$file")
 
-		$clang_cxx "$file" "$static_lib_path" -o "$build_dir/$build_output"
+		$clang_cxx "$file" -l"$sqlite_lib" "$static_lib_path" -o "$build_dir/$build_output"
 		echo
 		echo -e -n "\e[0;32m[+] Test for $file_name:\e[0;37m"