diff --git a/compile.sh b/build.sh
similarity index 60%
rename from compile.sh
rename to build.sh
index 442f3b4..2004640 100755
--- a/compile.sh
+++ b/build.sh
@@ -1,12 +1,14 @@
-#!/bin/dash
+#!/bin/sh
 
 mkdir -p bin/release
 
 language='
-	-std=gnu++20
+	-std=c++17
 	-fno-rtti
 	-fno-exceptions
-	-fno-non-call-exceptions'
+	-fno-non-call-exceptions
+	-fno-common'
+# force each global variable to be only defined once
 
 optimizations='
 	-Ofast
@@ -14,7 +16,8 @@ optimizations='
 	-fipa-pta
 	-fallow-store-data-races
 	-fgcse-sm
-	-fgcse-las'
+	-fgcse-las
+	-march=native'
 
 warnings='
 	-Wall
@@ -24,8 +27,7 @@ warnings='
 	-Wvirtual-inheritance' #-fanalyzer
 
 
-# each global variable is only declared once per single object.
-other='-fno-common -fno-fat-lto-objects -march=native'
+other='-fno-fat-lto-objects'
 
-g++ -o bin/release/famt $language $optimizations $warnings $other -DNDEBUG -s *.cpp -lncursesw
+g++ -o bin/release/famt $language $optimizations $warnings $other -DNDEBUG -pipe -s *.cpp -lncursesw
 #-static -lncursesw -ltinfo
diff --git a/build_debug.sh b/build_debug.sh
new file mode 100755
index 0000000..524d57b
--- /dev/null
+++ b/build_debug.sh
@@ -0,0 +1,21 @@
+#!/bin/sh
+
+mkdir -p bin/debug
+
+language='
+	-std=c++17
+	-fno-rtti
+	-fno-exceptions
+	-fno-non-call-exceptions
+	-fno-common'
+# force each global variable to be only defined once
+
+
+warnings='
+	-Wall
+	-Wextra
+	-Wpedantic
+	-Wmultiple-inheritance
+	-Wvirtual-inheritance' #-fanalyzer
+
+g++ -o bin/debug/famt $language -g -O0 -march=native $warnings -pipe *.cpp -lncursesw
diff --git a/compile_debug.sh b/compile_debug.sh
deleted file mode 100755
index d94df72..0000000
--- a/compile_debug.sh
+++ /dev/null
@@ -1,12 +0,0 @@
-#!/bin/dash
-
-mkdir -p bin/debug
-
-warnings='
-	-Wall
-	-Wextra
-	-Wpedantic
-	-Wmultiple-inheritance
-	-Wvirtual-inheritance' #-fanalyzer
-
-g++ -o bin/debug/famt -std=gnu++20 -g -O0 -march=native $warnings *.cpp -lncursesw
diff --git a/create_tree.hpp b/create_tree.hpp
new file mode 100644
index 0000000..09bcfab
--- /dev/null
+++ b/create_tree.hpp
@@ -0,0 +1,30 @@
+void create_tree()
+{
+	// Declare your tree
+	Tree tree("first_tree");
+
+	// Add member Adam with parents Nobody, Born: y, m, d
+	tree.addPerson("Адам", true, Nobody, Nobody, {0, 1, 6}); // ID 0
+	tree.addPerson("Ева", false, Nobody, Nobody, {0, 1, 6}); // ID 1
+
+	// Adam (0) is a Spouse of Eve (1)
+	tree.addRelation(0, Spouse, 1);
+
+	// Add Cain with parents Adam (0) and Eve
+	tree.addPerson("Кайн", true, 0, 1);
+
+	tree.addPerson("Авел", true, 0, 1);
+
+	tree.addPerson("Сит", true, 0, 1, 230);
+	tree.addPerson("Енос", true, 4, Nobody, 435);
+	tree.addPerson("Каинан", true, 5 , Nobody, 605);
+	tree.addPerson("Малелеил", true, 6, Nobody, 605);
+
+
+	tree.addPerson("Енох", true, 3 , Nobody);
+	tree.addPerson("Гаидад", true, 8 , Nobody);
+	tree.addPerson("Малелеил", true, 9, Nobody);
+
+	tree.saveToFile();
+	tree.display();
+}
diff --git a/main.cpp b/famt.cpp
similarity index 89%
rename from main.cpp
rename to famt.cpp
index f4dd12e..ffd49d3 100644
--- a/main.cpp
+++ b/famt.cpp
@@ -3,6 +3,8 @@
 #include "tree.hpp"
 #include "utils.hpp"
 
+#include "create_tree.hpp"
+
 using std::cin;
 using std::cout;
 int main()
@@ -19,7 +21,7 @@ int main()
 	use_default_colors();
 	/* init_pair(5, COLOR_BLACK, COLOR_BLACK); */
 	/* bkgd(COLOR_PAIR(5)); */
-	init_pair(COLOR_MALE, COLOR_BLUE, -1); /* -1 means use default */
+	init_pair(COLOR_MALE, COLOR_CYAN, -1); /* -1 means use default */
 	init_pair(COLOR_FEMALE, COLOR_RED, -1);
 	init_pair(COLOR_SELECTED, COLOR_YELLOW, -1);
 	wnoutrefresh(stdscr);					/* if not present the first real refresh is missed */
@@ -50,42 +52,38 @@ int main()
 	test2.display();
 
 	(test2 + test1).display();
-	/* test2 += test1; */
-	/* test2.display(); */
-	/* test1.display(); */
+
+	create_tree();
 
 
-	/* test2.saveToFile(); */
 
-	Tree firstTree("firstTree");
+	/* Tree firstTree("firstTree"); */
+	/* firstTree.addPerson("Адам", true, Nobody, Nobody, {0, 1, 6}); */
+	/* firstTree.addPerson("Ева", false, Nobody, Nobody, {0, 1, 6}); */
+	/* firstTree.addRelation(0, Spouse, 1); */
 
-	firstTree.addPerson("Адам", true, Nobody, Nobody, {0, 1, 6});
-	firstTree.addPerson("Ева", false, Nobody, Nobody, {0, 1, 6});
-	firstTree.addRelation(0, Spouse, 1);
+	/* firstTree.addPerson("Кайн", true, 0, 1); */
 
-	firstTree.addPerson("Кайн", true, 0, 1);
+	/* firstTree.addPerson("Авел", true, 0, 1); */
+	/* firstTree.addRelation(2, Sibling, 3); */
 
-	firstTree.addPerson("Авел", true, 0, 1);
-	firstTree.addRelation(2, Sibling, 3);
-
-	firstTree.addPerson("Сит", true, 0, 1, 230);
-	firstTree.addRelation(2, Sibling, 4);
-	firstTree.addPerson("Енос", true, 4, Nobody, 435);
-	firstTree.addPerson("Каинан", true, 5 , Nobody, 605);
-	firstTree.addPerson("Малелеил", true, 6, Nobody, 605);
+	/* firstTree.addPerson("Сит", true, 0, 1, 230); */
+	/* firstTree.addRelation(2, Sibling, 4); */
+	/* firstTree.addPerson("Енос", true, 4, Nobody, 435); */
+	/* firstTree.addPerson("Каинан", true, 5 , Nobody, 605); */
+	/* firstTree.addPerson("Малелеил", true, 6, Nobody, 605); */
 
 
-	firstTree.addPerson("Енох", true, 3 , Nobody);
-	firstTree.addPerson("Гаидад", true, 8 , Nobody);
-	firstTree.addPerson("Малелеил", true, 9, Nobody);
+	/* firstTree.addPerson("Енох", true, 3 , Nobody); */
+	/* firstTree.addPerson("Гаидад", true, 8 , Nobody); */
+	/* firstTree.addPerson("Малелеил", true, 9, Nobody); */
 
 
 	/* firstTree.print(); */
-	firstTree.display();
-	/* firstTree.saveToFile(); */
+	/* firstTree.display(); */
 
 	/* firstTree.printRel(3); */
-	firstTree.printOldestAncestors(3);
+	/* firstTree.printOldestAncestors(3); */
 
 
 /* ======================================================  */
diff --git a/tree.cpp b/tree.cpp
index 18337ee..5bac128 100644
--- a/tree.cpp
+++ b/tree.cpp
@@ -1,9 +1,8 @@
 #include"tree.hpp"
+#include"utils.hpp"
 #include <iostream>
 #include <fstream>
 #include <assert.h>
-#include"person.hpp"
-#include"utils.hpp"
 
 using std::ofstream;
 using std::ifstream;