diff --git a/src/color.h b/src/color.h
index c5816d0..a424b8d 100644
--- a/src/color.h
+++ b/src/color.h
@@ -1,3 +1,7 @@
+
+// Header guard
+#ifndef RESET
+
 #define RESET   "\033[0m"
 #define BLACK   "\033[30m"      /* Black */
 #define RED     "\033[31m"      /* Red */
@@ -14,4 +18,6 @@
 #define BOLDBLUE    "\033[1m\033[34m"      /* Bold Blue */
 #define BOLDMAGENTA "\033[1m\033[35m"      /* Bold Magenta */
 #define BOLDCYAN    "\033[1m\033[36m"      /* Bold Cyan */
-#define BOLDWHITE   "\033[1m\033[37m"      /* Bold White */
\ No newline at end of file
+#define BOLDWHITE   "\033[1m\033[37m"      /* Bold White */
+
+#endif
\ No newline at end of file
diff --git a/src/const.h b/src/const.h
index d73efeb..f3a413f 100644
--- a/src/const.h
+++ b/src/const.h
@@ -1,2 +1,6 @@
+#ifndef VERSION
+
 #define VERSION "0.5"
-#define NAME "bakatui"
\ No newline at end of file
+#define NAME "bakatui"
+
+#endif
\ No newline at end of file
diff --git a/src/flags.cpp b/src/flags.cpp
new file mode 100644
index 0000000..9aeaea1
--- /dev/null
+++ b/src/flags.cpp
@@ -0,0 +1,24 @@
+#include "const.h"
+#include <iostream>
+#include "helper_funcs.h"
+#include <cstdio>
+
+void PrintHelp() {
+    std::cout << "Usage: " << NAME << " [OPTIONS]" << "\n"
+    << "-h        Show this help menu\n"
+    << "-V        Show version\n"
+    << "-v        verbose mode\n"
+    << "-L        Force new login\n"
+    << "-S        Ignore SSL cert validity\n";
+    safe_exit(0);
+  }
+  
+void PrintVersion() {
+    std::cout << NAME" " << VERSION"\n" << "License GPLv3: GNU GPL version 3 <https://gnu.org/licenses/gpl.html>.\n";
+    safe_exit(0);
+  }
+
+void DeleteLogin(std::string savedir_path) {
+    std::remove((savedir_path + "/authfile").c_str());
+    std::remove((savedir_path + "/urlfile").c_str());
+}
\ No newline at end of file
diff --git a/src/flags.h b/src/flags.h
new file mode 100644
index 0000000..f865ebd
--- /dev/null
+++ b/src/flags.h
@@ -0,0 +1,10 @@
+#include <string>
+// header guard
+#ifndef _ba_fl_hg_
+#define _ba_fl_hg_
+
+void PrintHelp();
+void PrintVersion();
+void DeleteLogin(std::string savedir_path);
+
+#endif
\ No newline at end of file
diff --git a/src/helper_funcs.h b/src/helper_funcs.h
index 22e6299..19c3fd8 100644
--- a/src/helper_funcs.h
+++ b/src/helper_funcs.h
@@ -1,9 +1,16 @@
 #include <curses.h>
 #include <string>
+
+// header guard
+#ifndef _ba_hf_hg_
+#define _ba_hf_hg_
+
 void safe_exit(int code);
 std::string bool_to_string(bool bool_in);
 std::string SoRAuthFile(bool save, std::string data);
 void get_input_and_login();
 void print_in_middle(WINDOW *win, int starty, int startx, int width,
                      char *string, chtype color);
-std::string rm_tr_le_whitespace(const std::string &s);
\ No newline at end of file
+std::string rm_tr_le_whitespace(const std::string &s);
+
+#endif
\ No newline at end of file
diff --git a/src/main.cpp b/src/main.cpp
index 2e14d76..f0ed721 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -2,7 +2,6 @@
 #include "color.h"
 #include "helper_funcs.h"
 #include "main_menu.h"
-#include "marks.h"
 #include "net.h"
 #include <csignal>
 #include <cstdlib>
@@ -13,17 +12,12 @@
 #include <regex>
 #include <string>
 #include <unistd.h>
-#include "const.h"
+#include "flags.h"
+#include "types.h"
 
 std::string baka_api_url;
 
-void PrintHelp() {
-  std::cout << "Usage: " << NAME << " [OPTIONS]" << "\n"
-  << "-h        Show this help menu\n"
-  << "-v        Show version\n"
-  << "-L        Force new login\n";
-  safe_exit(0);
-}
+Config config;
 
 int main(int argc, char **argv) {
   // signal handlers
@@ -36,18 +30,22 @@ int main(int argc, char **argv) {
   signal(SIGSEGV, safe_exit);
 
   {
-    int opt;
-    while ((opt = getopt(argc, argv, "vf:")) != -1) {  // "f:" expects a value
-        switch (opt) {
-            case 'h': PrintHelp(); break;
-            case 'L': break;
-            case 'v': break;
-            default:  /* handle error */;
-        }
-    }
 
     std::string savedir_path = std::getenv("HOME");
     savedir_path.append("/.local/share/bakatui");
+
+    int opt;
+    while ((opt = getopt(argc, argv, "hVvLS:")) != -1) {
+        switch (opt) {
+            case 'h': PrintHelp(); break;
+            case 'V': PrintVersion(); break;
+            case 'v': config.verbose = true; break;
+            case 'L': DeleteLogin(savedir_path); break;
+            case 'S': config.ignoressl = true; break;
+            default: std::cerr << RED"[ERROR]" << RESET" invalid option: " << (char)optopt << "\ntry: -h\n"; safe_exit(EINVAL);
+        }
+    }
+
     std::string urlfile_path = std::string(savedir_path) + "/url";
     std::ifstream urlfile;
     urlfile.open(urlfile_path);
diff --git a/src/main.h b/src/main.h
index 9f53b09..ecd1f4c 100644
--- a/src/main.h
+++ b/src/main.h
@@ -1,4 +1,11 @@
 #include <curl/curl.h>
 #include <string>
+#include "types.h"
+// header guard
+#ifndef _ba_ma_hg_
+#define _ba_ma_hg_
 
 extern std::string baka_api_url;
+extern Config config;
+
+#endif
\ No newline at end of file
diff --git a/src/main_menu.h b/src/main_menu.h
index 1119823..2c6274c 100644
--- a/src/main_menu.h
+++ b/src/main_menu.h
@@ -1 +1,7 @@
-void main_menu();
\ No newline at end of file
+// header guard
+#ifndef _ba_mm_hg_
+#define _ba_mm_hg_
+
+void main_menu();
+
+#endif
\ No newline at end of file
diff --git a/src/marks.h b/src/marks.h
index 9166ad6..370219c 100644
--- a/src/marks.h
+++ b/src/marks.h
@@ -1 +1,5 @@
-void marks_page();
\ No newline at end of file
+// header guard
+#ifndef _ba_mp_hg_
+#define _ba_mp_hg_
+void marks_page();
+#endif
\ No newline at end of file
diff --git a/src/net.h b/src/net.h
index 2f6191c..4557c1c 100644
--- a/src/net.h
+++ b/src/net.h
@@ -1,6 +1,9 @@
 #include <curl/curl.h>
 #include <nlohmann/json.hpp>
 #include <string>
+// header guard
+#ifndef _ba_ne_hg_
+#define _ba_ne_hg_
 
 using nlohmann::json;
 
@@ -9,4 +12,5 @@ namespace bakaapi {
 void login(std::string username, std::string password);
 void refresh_access_token();
 json get_data_from_endpoint(std::string endpoint);
-} // namespace bakaapi
\ No newline at end of file
+} // namespace bakaapi
+#endif
\ No newline at end of file
diff --git a/src/timetable.cpp b/src/timetable.cpp
index 3b3655f..ff0343e 100644
--- a/src/timetable.cpp
+++ b/src/timetable.cpp
@@ -1,4 +1,8 @@
 #include "timetable.h"
+#include <nlohmann/json.hpp>
+#include "net.h"
+
+using nlohmann::json;
 
 #define NLINES 10
 #define NCOLS 40
@@ -9,5 +13,10 @@
 #define DEFAULT_PADDING 4
 
 void timetable_page() {
-	
+     // DONT FORGET TO UNCOMMENT
+    json resp_from_api = bakaapi::get_data_from_endpoint("api/3/marks");
+    // std::ifstream f("test-data/marks3.json");
+    // json resp_from_api = json::parse(f);
+    // calculate table size
+
 }
\ No newline at end of file
diff --git a/src/timetable.h b/src/timetable.h
index f79d1b6..9563bea 100644
--- a/src/timetable.h
+++ b/src/timetable.h
@@ -1 +1,6 @@
-void timetable_page();
\ No newline at end of file
+// header guard
+#ifndef _ba_ti_hg_
+#define _ba_ti_hg_
+
+void timetable_page();
+#endif
\ No newline at end of file
diff --git a/src/types.h b/src/types.h
new file mode 100644
index 0000000..376f699
--- /dev/null
+++ b/src/types.h
@@ -0,0 +1,9 @@
+// header guard
+#ifndef _ba_ty_hg_
+#define _ba_ty_hg_
+
+struct Config {
+    bool verbose = false;
+    bool ignoressl = false;
+};
+#endif
\ No newline at end of file