diff --git a/.gitignore b/.gitignore
index 5575209..e6cb23b 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,6 +1,8 @@
 otp
 pads/
+files/
 Gemini.md
 TropicOfCancer-HenryMiller.txt
+.gitea_token
 
 # Auto-generated files (none currently)
diff --git a/build.sh b/build.sh
index 9a0feeb..ff5863f 100755
--- a/build.sh
+++ b/build.sh
@@ -150,38 +150,153 @@ update_source_version() {
     fi
 }
 
-# Build functions
-build_project() {
-    print_status "Cleaning previous build..."
-    make clean
-    increment_version
-    print_status "Building OTP project..."
-    make
+# Cross-platform build functions
+check_cross_compiler() {
+    if ! command -v aarch64-linux-gnu-gcc > /dev/null 2>&1; then
+        print_error "ARM64/AArch64 cross-compiler not found!"
+        print_error "Install with: sudo apt install gcc-aarch64-linux-gnu"
+        print_error "Or on other distros: gcc-cross-aarch64"
+        return 1
+    fi
+    return 0
+}
+
+upload_release_asset() {
+    local api_url="$1"
+    local token="$2"
+    local version="$3"
+    local filename="$4"
+    
+    if [ ! -f "$filename" ]; then
+        print_warning "Binary $filename not found, skipping upload"
+        return 1
+    fi
+    
+    print_status "Uploading $filename to release..."
+    
+    # Get release ID first
+    local release_id=$(curl -s -H "Authorization: token $token" \
+                       "$api_url/releases/tags/$version" | \
+                       grep -o '"id":[0-9]*' | head -n1 | cut -d: -f2)
+    
+    if [ -z "$release_id" ]; then
+        print_error "Could not get release ID for $version"
+        return 1
+    fi
+    
+    # Upload the asset
+    curl -X POST "$api_url/releases/$release_id/assets" \
+         -H "Authorization: token $token" \
+         -H "Content-Type: application/octet-stream" \
+         -T "$filename" \
+         --data-binary "@$filename" \
+         -G -d "name=$filename"
+    
     if [ $? -eq 0 ]; then
-        print_success "Build completed successfully"
+        print_success "Uploaded $filename successfully"
     else
-        print_error "Build failed"
+        print_warning "Failed to upload $filename"
         return 1
     fi
 }
 
-build_static() {
+create_gitea_release() {
+    local version="$1"
+    
+    # Read token from ~/.gitea_token
+    if [ ! -f "$HOME/.gitea_token" ]; then
+        print_error "No ~/.gitea_token found. Cannot create release."
+        print_error "Create ~/.gitea_token with your Gitea access token"
+        return 1
+    fi
+    
+    local token=$(cat "$HOME/.gitea_token" | tr -d '\n\r')
+    local api_url="https://git.laantungir.net:222/api/v1/repos/laantungir/otp"
+    
+    print_status "Creating Gitea release for $version..."
+    
+    # Create release
+    local response=$(curl -s -X POST "$api_url/releases" \
+         -H "Authorization: token $token" \
+         -H "Content-Type: application/json" \
+         -d "{\"tag_name\": \"$version\", \"name\": \"$version\", \"body\": \"Automated release for $version\"}")
+    
+    if echo "$response" | grep -q '"id"'; then
+        print_success "Created release $version"
+        
+        # Upload binaries
+        upload_release_asset "$api_url" "$token" "$version" "otp-x86_64"
+        upload_release_asset "$api_url" "$token" "$version" "otp-arm64"
+    else
+        print_warning "Release may already exist or creation failed"
+        print_status "Response: $response"
+        
+        # Try to upload to existing release anyway
+        upload_release_asset "$api_url" "$token" "$version" "otp-x86_64"
+        upload_release_asset "$api_url" "$token" "$version" "otp-arm64"
+    fi
+}
+
+build_project() {
     print_status "Cleaning previous build..."
     make clean
     increment_version
-    print_status "Building OTP project with static linking..."
-    make static
-    if [ $? -eq 0 ]; then
-        print_success "Static build completed successfully"
+    
+    # Check for cross-compiler
+    if ! check_cross_compiler; then
+        print_warning "ARM64/AArch64 cross-compiler not available, building x86_64 only"
+        
+        # Build x86_64 only
+        print_status "Building OTP project for x86_64..."
+        CC=gcc make
+        if [ $? -eq 0 ]; then
+            mv otp otp-x86_64
+            print_success "x86_64 build completed successfully"
+        else
+            print_error "x86_64 build failed"
+            return 1
+        fi
     else
-        print_error "Static build failed"
-        return 1
+        # Build both architectures
+        print_status "Building OTP project for x86_64..."
+        CC=gcc make clean
+        CC=gcc make
+        if [ $? -eq 0 ]; then
+            mv otp otp-x86_64
+            print_success "x86_64 build completed successfully"
+        else
+            print_error "x86_64 build failed"
+            return 1
+        fi
+        
+        print_status "Building OTP project for ARM64/AArch64..."
+        CC=aarch64-linux-gnu-gcc make clean
+        CC=aarch64-linux-gnu-gcc make
+        if [ $? -eq 0 ]; then
+            mv otp otp-arm64
+            print_success "ARM64/AArch64 build completed successfully"
+        else
+            print_error "ARM64/AArch64 build failed"
+            return 1
+        fi
     fi
+    
+    # Create Gitea release with binaries
+    if [ -f "$HOME/.gitea_token" ]; then
+        create_gitea_release "$NEW_VERSION"
+    else
+        print_warning "No ~/.gitea_token found. Skipping release creation."
+        print_warning "Create ~/.gitea_token with your Gitea access token to enable releases."
+    fi
+    
+    print_success "Build completed successfully"
 }
 
 clean_project() {
     print_status "Cleaning build artifacts..."
     make clean
+    # Remove cross-compiled binaries
+    rm -f otp-x86_64 otp-arm64
     print_success "Clean completed"
 }
 
@@ -212,9 +327,6 @@ case "${1:-build}" in
     build)
         build_project
         ;;
-    static)
-        build_static
-        ;;
     clean)
         clean_project
         ;;
@@ -226,22 +338,29 @@ case "${1:-build}" in
         ;;
     *)
         echo "OTP Cipher Build Script"
-        echo "Usage: $0 [-m \"commit message\"] {build|static|clean|install|uninstall}"
+        echo "Usage: $0 [-m \"commit message\"] {build|clean|install|uninstall}"
         echo ""
         echo "Options:"
         echo "  -m, --message \"text\"  - Specify commit message (skips interactive prompt)"
         echo ""
         echo "Commands:"
-        echo "  build     - Build project with automatic version increment (default)"
-        echo "  static    - Build with static linking and version increment"
-        echo "  clean     - Clean build artifacts"
+        echo "  build     - Cross-compile for x86_64 and ARM64/AArch64 with automatic version increment (default)"
+        echo "  clean     - Clean build artifacts and cross-compiled binaries"
         echo "  install   - Install to system (requires build first)"
         echo "  uninstall - Remove from system"
         echo ""
+        echo "Build Output:"
+        echo "  otp-x86_64  - Native x86_64 binary"
+        echo "  otp-arm64   - ARM64/AArch64 binary for Raspberry Pi (if cross-compiler available)"
+        echo ""
+        echo "Gitea Integration:"
+        echo "  - Automatically creates releases with binaries if ~/.gitea_token exists"
+        echo "  - Requires: ARM64 cross-compiler (gcc-aarch64-linux-gnu)"
+        echo ""
         echo "Examples:"
         echo "  $0"
         echo "  $0 -m \"Fixed checksum parsing bug\""
-        echo "  $0 --message \"Added new feature\" static"
+        echo "  $0 --message \"Added new feature\" build"
         exit 1
         ;;
 esac
diff --git a/otp.c b/otp.c
index 3a2929d..0ee7ab0 100644
--- a/otp.c
+++ b/otp.c
@@ -330,7 +330,7 @@ int interactive_mode(void) {
 void show_main_menu(void) {
 
 
-    printf("\n=========================== Main Menu - OTP v0.2.111 ===========================\n\n");
+    printf("\n=========================== Main Menu - OTP v0.3.1 ===========================\n\n");
 
     printf(" \033[4mT\033[0mext encrypt\n");    //TEXT ENCRYPT
     printf(" \033[4mF\033[0mile encrypt\n");    //FILE ENCRYPT
@@ -2848,7 +2848,7 @@ int generate_ascii_armor(const char* chksum, uint64_t offset, const unsigned cha
     strcpy(*ascii_output, "-----BEGIN OTP MESSAGE-----\n");
     
     char temp_line[256];
-    snprintf(temp_line, sizeof(temp_line), "Version: v0.2.111\n");
+    snprintf(temp_line, sizeof(temp_line), "Version: v0.3.1\n");
     strcat(*ascii_output, temp_line);
     
     snprintf(temp_line, sizeof(temp_line), "Pad-ChkSum: %s\n", chksum);
@@ -4394,7 +4394,7 @@ int handle_add_entropy_to_pad(const char* pad_chksum) {
 }
 
 void print_usage(const char* program_name) {
-    printf("OTP Cipher - One Time Pad Implementation v0.2.111\n");
+    printf("OTP Cipher - One Time Pad Implementation v0.3.1\n");
     printf("Built for testing entropy system\n");
     printf("Usage:\n");
     printf("  %s                                         - Interactive mode\n", program_name);