diff --git a/README.md b/README.md
index f261932..0f41d3b 100644
--- a/README.md
+++ b/README.md
@@ -11,6 +11,65 @@ Works well on:
 
 There is also a stub implementation that returns errors on attempt to create a tray menu.
 
+# Setup
+
+Before you can compile `tray`, you'll need to add an environment definition before the line where you include `tray.h`. 
+
+**For Windows:**
+```c
+#include <stdio.h>
+#include <string.h>
+
+#define TRAY_WINAPI 1
+
+#include "tray.h"
+...
+```
+
+**For Linux:**
+```c
+#include <stdio.h>
+#include <string.h>
+
+#define TRAY_APPINDICATOR 1
+
+#include "tray.h"
+...
+```
+
+**For Mac:**
+**For Windows:**
+```c
+#include <stdio.h>
+#include <string.h>
+
+#define TRAY_APPKIT 1
+
+#include "tray.h"
+...
+```
+
+// For Linux:
+//#define TRAY_APPINDICATOR 1
+// For Mac:
+//#define TRAY_APPKIT 1
+
+# Demo
+
+The included example `.c` files can be compiled based on your environment.
+
+For example, to compile and run the program on Windows: 
+
+```shell
+$> gcc example_windows.c [Enter]
+``` 
+
+This will compile and build `a.out`. To run it: 
+
+```
+$> a [Enter]
+```
+
 # Example
 
 ```c
diff --git a/example_linux.c b/example_linux.c
new file mode 100644
index 0000000..fc1bcd9
--- /dev/null
+++ b/example_linux.c
@@ -0,0 +1,96 @@
+#include <stdio.h>
+#include <string.h>
+
+// For Linux
+#define TRAY_APPINDICATOR 1
+
+#include "tray.h"
+
+#if TRAY_APPINDICATOR
+#define TRAY_ICON1 "indicator-messages"
+#define TRAY_ICON2 "indicator-messages-new"
+#elif TRAY_APPKIT
+#define TRAY_ICON1 "icon.png"
+#define TRAY_ICON2 "icon.png"
+#elif TRAY_WINAPI
+#define TRAY_ICON1 "icon.ico"
+#define TRAY_ICON2 "icon.ico"
+#endif
+
+static struct tray tray;
+
+static void toggle_cb(struct tray_menu *item) {
+  printf("toggle cb\n");
+  item->checked = !item->checked;
+  tray_update(&tray);
+}
+
+static void hello_cb(struct tray_menu *item) {
+  (void)item;
+  printf("hello cb\n");
+  if (strcmp(tray.icon, TRAY_ICON1) == 0) {
+    tray.icon = TRAY_ICON2;
+  } else {
+    tray.icon = TRAY_ICON1;
+  }
+  tray_update(&tray);
+}
+
+static void quit_cb(struct tray_menu *item) {
+  (void)item;
+  printf("quit cb\n");
+  tray_exit();
+}
+
+static void submenu_cb(struct tray_menu *item) {
+  (void)item;
+  printf("submenu: clicked on %s\n", item->text);
+  tray_update(&tray);
+}
+
+// Test tray init
+static struct tray tray = {
+    .icon = TRAY_ICON1,
+    .menu =
+        (struct tray_menu[]){
+            {.text = "Hello", .cb = hello_cb},
+            {.text = "Checked", .checked = 1, .cb = toggle_cb},
+            {.text = "Disabled", .disabled = 1},
+            {.text = "-"},
+            {.text = "SubMenu",
+             .submenu =
+                 (struct tray_menu[]){
+                     {.text = "FIRST", .checked = 1, .cb = submenu_cb},
+                     {.text = "SECOND",
+                      .submenu =
+                          (struct tray_menu[]){
+                              {.text = "THIRD",
+                               .submenu =
+                                   (struct tray_menu[]){
+                                       {.text = "7", .cb = submenu_cb},
+                                       {.text = "-"},
+                                       {.text = "8", .cb = submenu_cb},
+                                       {.text = NULL}}},
+                              {.text = "FOUR",
+                               .submenu =
+                                   (struct tray_menu[]){
+                                       {.text = "5", .cb = submenu_cb},
+                                       {.text = "6", .cb = submenu_cb},
+                                       {.text = NULL}}},
+                              {.text = NULL}}},
+                     {.text = NULL}}},
+            {.text = "-"},
+            {.text = "Quit", .cb = quit_cb},
+            {.text = NULL}},
+};
+
+int main() {
+  if (tray_init(&tray) < 0) {
+    printf("failed to create tray\n");
+    return 1;
+  }
+  while (tray_loop(1) == 0) {
+    printf("iteration\n");
+  }
+  return 0;
+}
diff --git a/example_mac.c b/example_mac.c
new file mode 100644
index 0000000..69b97d8
--- /dev/null
+++ b/example_mac.c
@@ -0,0 +1,96 @@
+#include <stdio.h>
+#include <string.h>
+
+// For Mac
+#define TRAY_APPKIT 1
+
+#include "tray.h"
+
+#if TRAY_APPINDICATOR
+#define TRAY_ICON1 "indicator-messages"
+#define TRAY_ICON2 "indicator-messages-new"
+#elif TRAY_APPKIT
+#define TRAY_ICON1 "icon.png"
+#define TRAY_ICON2 "icon.png"
+#elif TRAY_WINAPI
+#define TRAY_ICON1 "icon.ico"
+#define TRAY_ICON2 "icon.ico"
+#endif
+
+static struct tray tray;
+
+static void toggle_cb(struct tray_menu *item) {
+  printf("toggle cb\n");
+  item->checked = !item->checked;
+  tray_update(&tray);
+}
+
+static void hello_cb(struct tray_menu *item) {
+  (void)item;
+  printf("hello cb\n");
+  if (strcmp(tray.icon, TRAY_ICON1) == 0) {
+    tray.icon = TRAY_ICON2;
+  } else {
+    tray.icon = TRAY_ICON1;
+  }
+  tray_update(&tray);
+}
+
+static void quit_cb(struct tray_menu *item) {
+  (void)item;
+  printf("quit cb\n");
+  tray_exit();
+}
+
+static void submenu_cb(struct tray_menu *item) {
+  (void)item;
+  printf("submenu: clicked on %s\n", item->text);
+  tray_update(&tray);
+}
+
+// Test tray init
+static struct tray tray = {
+    .icon = TRAY_ICON1,
+    .menu =
+        (struct tray_menu[]){
+            {.text = "Hello", .cb = hello_cb},
+            {.text = "Checked", .checked = 1, .cb = toggle_cb},
+            {.text = "Disabled", .disabled = 1},
+            {.text = "-"},
+            {.text = "SubMenu",
+             .submenu =
+                 (struct tray_menu[]){
+                     {.text = "FIRST", .checked = 1, .cb = submenu_cb},
+                     {.text = "SECOND",
+                      .submenu =
+                          (struct tray_menu[]){
+                              {.text = "THIRD",
+                               .submenu =
+                                   (struct tray_menu[]){
+                                       {.text = "7", .cb = submenu_cb},
+                                       {.text = "-"},
+                                       {.text = "8", .cb = submenu_cb},
+                                       {.text = NULL}}},
+                              {.text = "FOUR",
+                               .submenu =
+                                   (struct tray_menu[]){
+                                       {.text = "5", .cb = submenu_cb},
+                                       {.text = "6", .cb = submenu_cb},
+                                       {.text = NULL}}},
+                              {.text = NULL}}},
+                     {.text = NULL}}},
+            {.text = "-"},
+            {.text = "Quit", .cb = quit_cb},
+            {.text = NULL}},
+};
+
+int main() {
+  if (tray_init(&tray) < 0) {
+    printf("failed to create tray\n");
+    return 1;
+  }
+  while (tray_loop(1) == 0) {
+    printf("iteration\n");
+  }
+  return 0;
+}
diff --git a/example_windows.c b/example_windows.c
new file mode 100644
index 0000000..b10c1af
--- /dev/null
+++ b/example_windows.c
@@ -0,0 +1,96 @@
+#include <stdio.h>
+#include <string.h>
+
+// For Windows:
+#define TRAY_WINAPI 1
+
+#include "tray.h"
+
+#if TRAY_APPINDICATOR
+#define TRAY_ICON1 "indicator-messages"
+#define TRAY_ICON2 "indicator-messages-new"
+#elif TRAY_APPKIT
+#define TRAY_ICON1 "icon.png"
+#define TRAY_ICON2 "icon.png"
+#elif TRAY_WINAPI
+#define TRAY_ICON1 "icon.ico"
+#define TRAY_ICON2 "icon.ico"
+#endif
+
+static struct tray tray;
+
+static void toggle_cb(struct tray_menu *item) {
+  printf("toggle cb\n");
+  item->checked = !item->checked;
+  tray_update(&tray);
+}
+
+static void hello_cb(struct tray_menu *item) {
+  (void)item;
+  printf("hello cb\n");
+  if (strcmp(tray.icon, TRAY_ICON1) == 0) {
+    tray.icon = TRAY_ICON2;
+  } else {
+    tray.icon = TRAY_ICON1;
+  }
+  tray_update(&tray);
+}
+
+static void quit_cb(struct tray_menu *item) {
+  (void)item;
+  printf("quit cb\n");
+  tray_exit();
+}
+
+static void submenu_cb(struct tray_menu *item) {
+  (void)item;
+  printf("submenu: clicked on %s\n", item->text);
+  tray_update(&tray);
+}
+
+// Test tray init
+static struct tray tray = {
+    .icon = TRAY_ICON1,
+    .menu =
+        (struct tray_menu[]){
+            {.text = "Hello", .cb = hello_cb},
+            {.text = "Checked", .checked = 1, .cb = toggle_cb},
+            {.text = "Disabled", .disabled = 1},
+            {.text = "-"},
+            {.text = "SubMenu",
+             .submenu =
+                 (struct tray_menu[]){
+                     {.text = "FIRST", .checked = 1, .cb = submenu_cb},
+                     {.text = "SECOND",
+                      .submenu =
+                          (struct tray_menu[]){
+                              {.text = "THIRD",
+                               .submenu =
+                                   (struct tray_menu[]){
+                                       {.text = "7", .cb = submenu_cb},
+                                       {.text = "-"},
+                                       {.text = "8", .cb = submenu_cb},
+                                       {.text = NULL}}},
+                              {.text = "FOUR",
+                               .submenu =
+                                   (struct tray_menu[]){
+                                       {.text = "5", .cb = submenu_cb},
+                                       {.text = "6", .cb = submenu_cb},
+                                       {.text = NULL}}},
+                              {.text = NULL}}},
+                     {.text = NULL}}},
+            {.text = "-"},
+            {.text = "Quit", .cb = quit_cb},
+            {.text = NULL}},
+};
+
+int main() {
+  if (tray_init(&tray) < 0) {
+    printf("failed to create tray\n");
+    return 1;
+  }
+  while (tray_loop(1) == 0) {
+    printf("iteration\n");
+  }
+  return 0;
+}
diff --git a/icon.ico b/icon.ico
new file mode 100644
index 0000000..bb96b6e
Binary files /dev/null and b/icon.ico differ
diff --git a/main.c b/main.c
new file mode 100644
index 0000000..13fc63a
--- /dev/null
+++ b/main.c
@@ -0,0 +1,35 @@
+#include <stdio.h>
+#include "tray.h"
+
+extern void toggle_cb(struct tray_menu *item); 
+extern void quit_cb(struct tray_menu *item);
+
+struct tray main_tray = {
+    .icon = "icon.ico",
+    .menu = (struct tray_menu[]){{"Toggle me", 0, 0, toggle_cb, NULL},
+                                 {"-", 0, 0, NULL, NULL},
+                                 {"Quit", 0, 0, quit_cb, NULL},
+                                 {NULL, 0, 0, NULL, NULL}},
+};
+
+void toggle_cb(struct tray_menu *item) {
+	item->checked = !item->checked;
+	tray_update(&main_tray);
+}
+
+void quit_cb(struct tray_menu *item) {
+  tray_exit();
+}
+
+
+int main() {
+
+    
+
+    tray_init(&main_tray);
+    while (tray_loop(1) == 0);
+    tray_exit();
+
+
+    return 0;
+}
\ No newline at end of file