diff --git a/makefile b/makefile
index 9554d96..edcfb6d 100644
--- a/makefile
+++ b/makefile
@@ -20,6 +20,7 @@ CFLAGS += -Wno-unused-result
 CFLAGS += -Wno-unused-local-typedefs
 CFLAGS += -Wno-unused-const-variable
 CFLAGS += -Wno-unused-macros
+CFLAGS += -lsodium
 CFLAGS += -O3
 CFLAGS += -g
 
diff --git a/src/main.cpp b/src/main.cpp
index c51cec7..722eb32 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -1,8 +1,16 @@
 #include <iostream>
 #include <memory>
+#include <sodium.h>
 
 #include "point.hpp"
 
+unsigned char ed25519_pk[crypto_sign_PUBLICKEYBYTES];
+unsigned char ed25519_sk[crypto_sign_SECRETKEYBYTES];
+unsigned char ed25519_seed[crypto_sign_SEEDBYTES];
+unsigned char edwards25519_pk[crypto_scalarmult_ed25519_BYTES];
+unsigned char edwards25519_sk[crypto_scalarmult_ed25519_SCALARBYTES];
+unsigned char h[crypto_hash_sha512_BYTES];
+
 template <typename T> struct Option {
   private:
     T value;
@@ -11,6 +19,12 @@ template <typename T> struct Option {
   public:
     Option() : is_some(false) {}
     Option(T value) : value(value), is_some(true) {}
+
+    T unwrap() {
+        if (!is_some)
+            throw std::runtime_error("Option is empty");
+        return value;
+    }
 };
 
 // Templated alias for unique_ptr
@@ -21,6 +35,16 @@ template <typename T, typename... Args> Box<T> Enbox(Args &&...args) {
 }
 
 int main(int argc, char *argv[]) {
+    if (sodium_init() < 0) {
+        return 1;
+    }
+
+    // create an Ed25519 keypair
+    crypto_sign_keypair(ed25519_pk, ed25519_sk);
+
+    // Extract the seed from the Ed25519 secret key
+    crypto_sign_ed25519_sk_to_seed(ed25519_seed, ed25519_sk);
+
     Point p = Point(10, 5);
     std::cout << p << std::endl;
     p.move(5, 5);
@@ -33,6 +57,9 @@ int main(int argc, char *argv[]) {
 
     Box<Point> p_box = std::make_unique<Point>(10, 5);
     Box<Point> p_box2 = Enbox<Point>(10, 5);
+    Box<Option<Point>> p_box3 = Enbox<Option<Point>>(Point(10, 5));
+
+    p_box3->unwrap().move(5, 5);
 
     std::cout << p << std::endl;
     std::cout << *p_box << std::endl;