diff --git a/src/main.cpp b/src/main.cpp
index 2782997..0071fec 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -1,34 +1,56 @@
+#include "symbol.hpp"
+#include <cxxopts.hpp>
+#include <fcntl.h>
 #include <filesystem>
 #include <iostream>
+#include <libdwarf.h>
 #include <string>
 #include <unistd.h>
-#include <cxxopts.hpp>
-#include <vector>
 
-int main(int argc, char** argv) {
-  cxxopts::Options options("gwatch", "A command-line variable watcher");
-  options.add_options()
-    ("var", "Symbol to watch", cxxopts::value<std::string>())
-    ("exec", "Executable to run", cxxopts::value<std::filesystem::path>())
-    ("h,help", "Print usage");
-    // TODO: Figure out a way to receive arguments for the executable being ran
-    // ("--", "Arguents to provide to the executable", cxxopts::value<std::vector<std::string>>()->default_value({}));
+int main(int argc, char **argv) {
+  cxxopts::Options options("gwatch",
+                          "List global integer variables in a binary");
+  options.add_options()("exec", "Executable to analyze",
+                        cxxopts::value<std::filesystem::path>())(
+      "h,help", "Print usage");
 
   auto result = options.parse(argc, argv);
 
-  if (result.count("help") || argc < 2) {
-    std::cout << options.help();
-    exit(0);
+  if (result.count("help") || argc < 2 || !result.count("exec")) {
+    std::cout << options.help() << std::endl;
+    return 0;
   }
 
-  std::cout << result["var"].as<std::string>() << std::endl;
-  std::cout << result["exec"].as<std::filesystem::path>() << std::endl;
+  auto exec_path = result["exec"].as<std::filesystem::path>();
 
-  // auto pArgs = result["--"].as<std::vector<std::string>>();
+  // Open the binary file
+  int fd = open(exec_path.c_str(), O_RDONLY);
+  if (fd < 0) {
+    std::cerr << "Error: Cannot open file " << exec_path << std::endl;
+    return 1;
+  }
 
-  // for (auto x : pArgs) {
-  //   std::cout << x << std::endl;
-  // }
+  // Initialize libdwarf
+  Dwarf_Debug dbg = nullptr;
+  Dwarf_Error err;
+  int res = dwarf_init_b(fd, DW_GROUPNUMBER_ANY, nullptr, nullptr, &dbg, &err);
+
+  if (res != DW_DLV_OK) {
+    std::cerr << "Error: Failed to initialize DWARF debug info for "
+              << exec_path << std::endl;
+    std::cerr << "Make sure the binary was compiled with debug symbols (-g)"
+              << std::endl;
+    close(fd);
+    return 1;
+  }
+
+  // List global integer variables
+  Symbol symbol;
+  symbol.list_global_integer_vars(dbg);
+
+  // Cleanup
+  dwarf_finish(dbg);
+  close(fd);
 
   return 0;
 }