diff --git a/cpp-to-rust/Cargo.toml b/cpp-to-rust/Cargo.toml
new file mode 100644
index 0000000..49c42c7
--- /dev/null
+++ b/cpp-to-rust/Cargo.toml
@@ -0,0 +1,8 @@
+[package]
+name = "cpp-to-rust"
+version = "0.1.0"
+authors = ["timmonfette1 <monfette.timothy@gmail.com>"]
+
+[lib]
+name = "double_input"
+crate-type = ["dylib"]
diff --git a/cpp-to-rust/Makefile b/cpp-to-rust/Makefile
new file mode 100644
index 0000000..ad22524
--- /dev/null
+++ b/cpp-to-rust/Makefile
@@ -0,0 +1,16 @@
+ifeq ($(shell uname),Darwin)
+    EXT := dylib
+else
+    EXT := so
+endif
+
+all: target/debug/libdouble_input.$(EXT)
+	g++ src/main.cpp -L ./target/debug/ -ldouble_input -o run
+	LD_LIBRARY_PATH=./target/debug/ ./run
+
+target/debug/libdouble_input.$(EXT): src/lib.rs Cargo.toml
+	cargo build
+
+clean:
+	rm -rf target
+	rm -rf run
diff --git a/cpp-to-rust/src/example.h b/cpp-to-rust/src/example.h
new file mode 100644
index 0000000..78b6a46
--- /dev/null
+++ b/cpp-to-rust/src/example.h
@@ -0,0 +1,13 @@
+#ifndef _EXAMPLE_H
+#define _EXAMPLE_H
+
+#ifdef __cplusplus
+extern "C"{
+#endif
+
+int double_input(int input);
+
+#ifdef __cplusplus
+}
+#endif
+#endif
diff --git a/cpp-to-rust/src/lib.rs b/cpp-to-rust/src/lib.rs
new file mode 100644
index 0000000..bf573d1
--- /dev/null
+++ b/cpp-to-rust/src/lib.rs
@@ -0,0 +1,4 @@
+#[no_mangle]
+pub extern fn double_input(input: i32) -> i32 {
+    input * 2
+}
diff --git a/cpp-to-rust/src/main.cpp b/cpp-to-rust/src/main.cpp
new file mode 100644
index 0000000..e4c5ced
--- /dev/null
+++ b/cpp-to-rust/src/main.cpp
@@ -0,0 +1,12 @@
+#include <iostream>
+#include "example.h"
+
+using namespace std;
+
+int main() {
+  int input = 10;
+  int output = double_input(input);
+  cout<<input<<" * 2 = "<<output<<"\n";
+
+  return 0;
+}
diff --git a/julia-to-rust/Cargo.toml b/julia-to-rust/Cargo.toml
new file mode 100644
index 0000000..bd100be
--- /dev/null
+++ b/julia-to-rust/Cargo.toml
@@ -0,0 +1,8 @@
+[package]
+name = "julia-to-rust"
+version = "0.1.0"
+authors = ["timmonfette1 <monfette.timothy@gmail.com>"]
+
+[lib]
+name = "double_input"
+crate-type = ["dylib"]
diff --git a/julia-to-rust/Makefile b/julia-to-rust/Makefile
new file mode 100644
index 0000000..cb8c7e7
--- /dev/null
+++ b/julia-to-rust/Makefile
@@ -0,0 +1,14 @@
+ifeq ($(shell uname),Darwin)
+    EXT := dylib
+else
+    EXT := so
+endif
+
+all: target/debug/libdouble_input.$(EXT)
+	julia src/main.jl
+
+target/debug/libdouble_input.$(EXT): src/lib.rs Cargo.toml
+	cargo build
+
+clean:
+	rm -rf target
diff --git a/julia-to-rust/src/lib.rs b/julia-to-rust/src/lib.rs
new file mode 100644
index 0000000..bf573d1
--- /dev/null
+++ b/julia-to-rust/src/lib.rs
@@ -0,0 +1,4 @@
+#[no_mangle]
+pub extern fn double_input(input: i32) -> i32 {
+    input * 2
+}
diff --git a/julia-to-rust/src/main.jl b/julia-to-rust/src/main.jl
new file mode 100644
index 0000000..f3e5d40
--- /dev/null
+++ b/julia-to-rust/src/main.jl
@@ -0,0 +1,7 @@
+input = Int32(10)
+output =  ccall((:double_input, "target/debug/libdouble_input"),
+                        Int32, (Int32,), input)
+
+print(input)
+print(" * 2 = ")
+println(output)