diff --git a/README.md b/README.md
index e1703f0..79a3ff8 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,6 @@
 # Brainfuck **!DRAFT!** 🚧
 
-Интерпретатор для brainfuck, насписаный на golang с линтером и дополнительными функциями
+Интерпретатор с фазой компиляции для brainfuck, насписаный на golang с линтером и дополнительными функциями
 
 > [!WARNING]
 > This is a WIP project, anything can be changed and/or broken without any notification beforehand
diff --git a/brainfuck.json b/brainfuck.json
new file mode 100644
index 0000000..3b64a07
--- /dev/null
+++ b/brainfuck.json
@@ -0,0 +1,42 @@
+{
+  "unicode": true,
+  "memory_cells": 30000,
+  "load_dump": "data_in.bin",
+  "save_dump": "data_out.bin",
+  "sources": [
+    "example/hw.bf"
+  ],
+  "compiled": "bin/hw.bfc",
+  "lint": [
+    {
+      "name": "brackets",
+      "level": "error",
+      "expected": "=1"
+    },
+    {
+      "name": "operators",
+      "level": "warning",
+      "expected": "=1"
+    },
+    {
+      "name": "loop_depth",
+      "level": "warning",
+      "expected": "<=100"
+    },
+    {
+      "name": "loop_depth",
+      "level": "error",
+      "expected": "<=255"
+    },
+    {
+      "name": "pointer_balance",
+      "level": "error",
+      "expected": "<0"
+    },
+    {
+      "name": "pointer_balance",
+      "level": "warning",
+      "expected": ">30000"
+    }
+  ]
+}
\ No newline at end of file
diff --git a/brainfuck.yml b/brainfuck.yml
deleted file mode 100644
index 16d8ceb..0000000
--- a/brainfuck.yml
+++ /dev/null
@@ -1,28 +0,0 @@
-brainfuck:
-  unicode: true
-  memory_cells: 30000
-  load_dump: 'data_in.bin'
-  save_dump: 'data_out.bin'
-  sorces:
-    - 'example/hw.bf'
-  compiled: 'bin/hw.bfc'
-  lint:
-    - brackets
-      level: 'error'
-      expected: '=1'
-    - operators
-      level: 'warning'
-      expected: '=1'
-    - loop_depth
-      level: 'warning'
-      expected: '<=100'
-    - loop_depth
-      level: 'error'
-      expected: '<=255'
-    - pointer_balance
-      level: 'error'
-      expected: '<0'
-    - pointer_balance
-      level: 'warning'
-      expected: '>30000'
-  
\ No newline at end of file
diff --git a/src/lexer.go b/src/lexer.go
new file mode 100644
index 0000000..85f0393
--- /dev/null
+++ b/src/lexer.go
@@ -0,0 +1 @@
+package main
\ No newline at end of file
diff --git a/src/lexer_test.go b/src/lexer_test.go
new file mode 100644
index 0000000..85f0393
--- /dev/null
+++ b/src/lexer_test.go
@@ -0,0 +1 @@
+package main
\ No newline at end of file
diff --git a/src/validation.go b/src/linter.go
similarity index 89%
rename from src/validation.go
rename to src/linter.go
index 7173b89..77f4d8c 100644
--- a/src/validation.go
+++ b/src/linter.go
@@ -1,8 +1,8 @@
 package main
 
-import (
-	// "fmt"
-)
+type Filter struct {
+	
+}
 
 func validateBrackets(src string) int {
 	count := 0
@@ -55,12 +55,14 @@ func validatePointerBalance(src string) int {
 	for _, c := range src {
 		if c == '[' || c == ']' {
 			break
-		} else if c == '+' {
+		} else if c == '>' {
 			pointer_index++
 			max_index = max(max_index, pointer_index)
-		} else if c == '-' {
+		} else if c == '<' {
 			pointer_index--
-			return -1
+			if pointer_index < 0 {
+				return -1
+			}
 		}
 	}
 	return max_index
diff --git a/src/linter_test.go b/src/linter_test.go
new file mode 100644
index 0000000..634b3e5
--- /dev/null
+++ b/src/linter_test.go
@@ -0,0 +1,88 @@
+package main
+
+import (
+	"testing"
+)
+
+func TestValidateBrackets(t *testing.T) {
+	tests := []struct {
+		input    string
+		expected int
+	}{
+		{"[][][]", 1},
+		{"[[[]]]", 1},
+		{"[[[][]]]", 1},
+		{"[", 0},
+		{"]", 0},
+		{"][", 0},
+		{"[]", 1},
+	}
+
+	for _, test := range tests {
+		result := validateBrackets(test.input)
+		if result != test.expected {
+			t.Errorf("validateBrackets(%q) = %v; expected %v", test.input, result, test.expected)
+		}
+	}
+}
+
+func TestValidateOperators(t *testing.T) {
+	tests := []struct {
+		input    string
+		expected int
+	}{
+		{"+-<>-+.,[]", -1},
+		{"+-<>-+.,()", 8},
+		{"hello", 0},
+	}
+
+	for _, test := range tests {
+		result := validateOperators(test.input)
+		if result != test.expected {
+			t.Errorf("validateOperators(%q) = %v; expected %v", test.input, result, test.expected)
+		}
+	}
+}
+
+func TestValidateLoopDepth(t *testing.T) {
+	tests := []struct {
+		input    string
+		expected int
+	}{
+		{"+++---", 0},
+		{"+++[->+<]", 1},
+		{"[[[", -1},
+		{"[]", 1},
+		{"[[][]]", 2},
+		{"[[[]][]]", 3},
+		{"[[[[[[[[[[[[[[[[[[[[[[]]]]]]]]]]]]]]]]]]]]]]", 22},
+	}
+
+	for _, test := range tests {
+		result := validateLoopDepth(test.input)
+		if result != test.expected {
+			t.Errorf("validateLoopDepth(%q) = %v; expected %v", test.input, result, test.expected)
+		}
+	}
+}
+
+func TestValidatePointerBalance(t *testing.T) {
+	tests := []struct {
+		input    string
+		expected int
+	}{
+		{">>><<<", 3},
+		{"<<<>>>", -1},
+		{">>>>>>", 6},
+		{">>>>[]", 4},
+		{"<<<<[]", -1},
+		{"><><[]", 1},
+	}
+
+	for _, test := range tests {
+		result := validatePointerBalance(test.input)
+		if result != test.expected {
+			t.Errorf("validatePointerBalance(%q) = %v; expected %v", test.input, result, test.expected)
+		}
+	}
+}
diff --git a/src/main.go b/src/main.go
index d4bb753..c2cb47d 100644
--- a/src/main.go
+++ b/src/main.go
@@ -31,39 +31,4 @@ func main() {
 
 	save(file, firstArray, secondArray)
 	load(file)
-	
-	fmt.Println()
-
-	fmt.Println(validateBrackets("[][][]"))
-	fmt.Println(validateBrackets("[[[]]]"))
-	fmt.Println(validateBrackets("[[[][]]]"))
-	fmt.Println(validateBrackets("["))
-	fmt.Println(validateBrackets("]"))
-	fmt.Println(validateBrackets("]["))
-	fmt.Println(validateBrackets("[]"))
-
-	fmt.Println()
-
-	fmt.Println(validateOperators("+-<>-+.,[]"))
-	fmt.Println(validateOperators("+-<>-+.,()"))
-	fmt.Println(validateOperators("hello"))
-
-	fmt.Println()
-
-	fmt.Println(validateLoopDepth("+++---"))
-	fmt.Println(validateLoopDepth("+++[->+<]"))
-	fmt.Println(validateLoopDepth("[[["))
-	fmt.Println(validateLoopDepth("[]"))
-	fmt.Println(validateLoopDepth("[[][]]"))
-	fmt.Println(validateLoopDepth("[[[]][]]"))
-	fmt.Println(validateLoopDepth("[[[[[[[[[[[[[[[[[[[[[[]]]]]]]]]]]]]]]]]]]]]]"))
-
-	fmt.Println()
-
-	fmt.Println(validatePointerBalance("+++---"))
-	fmt.Println(validatePointerBalance("---+++"))
-	fmt.Println(validatePointerBalance("++++++"))
-	fmt.Println(validatePointerBalance("++++[]"))
-	fmt.Println(validatePointerBalance("----[]"))
-	fmt.Println(validatePointerBalance("+-+-[]"))
 }
diff --git a/src/serialization.go b/src/persistence.go
similarity index 83%
rename from src/serialization.go
rename to src/persistence.go
index 8264722..0433b97 100644
--- a/src/serialization.go
+++ b/src/persistence.go
@@ -1,7 +1,6 @@
 package main
 
 import (
-	"fmt"
 	"encoding/binary"
 	"os"
 )
@@ -56,8 +55,5 @@ func load(filepath string) ([]byte, []byte, error) {
 	}
 	
 	data2Array = data2Array[4+data1ArraySize:]
-	fmt.Printf("Размер первого массива: %d\n", data1ArraySize)
-	fmt.Printf("Первый массив: %v\n", data1Array)
-	fmt.Printf("Второй массив: %v\n", data2Array)
 	return data1Array, data2Array, nil
 }
\ No newline at end of file
diff --git a/src/persistence_test.go b/src/persistence_test.go
new file mode 100644
index 0000000..0869ddf
--- /dev/null
+++ b/src/persistence_test.go
@@ -0,0 +1,47 @@
+package main
+
+import (
+	"bytes"
+	"encoding/binary"
+	"os"
+	"testing"
+)
+
+func TestSaveAndLoad(t *testing.T) {
+	file := "test.bfc"
+	firstArray := []byte{0x01, 0x02, 0x03, 0x04, 0x05}
+	secondArray := []byte{0xAA, 0xBB, 0xCC}
+
+	save(file, firstArray, secondArray)
+
+	if _, err := os.Stat(file); os.IsNotExist(err) {
+		t.Errorf("Файл %s не был создан", file)
+	}
+
+	load(file)
+
+	os.Remove(file)
+}
+
+func TestSaveContent(t *testing.T) {
+	file := "test_content.bfc"
+	firstArray := []byte{1, 2, 3}
+	secondArray := []byte{10, 20}
+
+	save(file, firstArray, secondArray)
+
+	data, err := os.ReadFile(file)
+	if err != nil {
+		t.Fatalf("Не удалось прочитать файл: %v", err)
+	}
+
+	sizeBytes := make([]byte, 4)
+	binary.BigEndian.PutUint32(sizeBytes, uint32(len(firstArray)))
+	expected := append(sizeBytes, firstArray...)
+	expected = append(expected, secondArray...)
+	if !bytes.Equal(data, expected) {
+		t.Errorf("Содержимое файла: %v; ожидалось: %v", data, expected)
+	}
+
+	os.Remove(file)
+}
diff --git a/src/settings.go b/src/settings.go
new file mode 100644
index 0000000..db740a3
--- /dev/null
+++ b/src/settings.go
@@ -0,0 +1,73 @@
+package main
+
+import (
+	"encoding/json"
+	"os"
+)
+
+type Config struct {
+	Unicode     bool       `json:"unicode"`
+	MemoryCells int        `json:"memory_cells"`
+	LoadDump    string     `json:"load_dump"`
+	SaveDump    string     `json:"save_dump"`
+	Sources     []string   `json:"soгrces"`
+	Compiled    string     `json:"compiled"`
+	Lint        []LintRule `json:"lint"`
+}
+
+type LintRule struct {
+	Name     string `json:"name"`
+	Level    string `json:"level"`
+	Expected string `json:"expected"`
+}
+
+func createDefaultConfig() *Config {
+	return &Config{
+		Unicode:     false,
+		MemoryCells: 30000,
+		LoadDump:    "data_in.bin",
+		SaveDump:    "data_out.bin",
+		Sources:     []string{"example/default.bf"},
+		Compiled:    "bin/default.bfc",
+		Lint: []LintRule{
+			{Name: "brackets", Level: "error", Expected: "=1"},
+			{Name: "operators", Level: "warning", Expected: "=1"},
+			{Name: "loop_depth", Level: "warning", Expected: "<=100"},
+			{Name: "loop_depth", Level: "error", Expected: "<=255"},
+			{Name: "pointer_balance", Level: "error", Expected: "<0"},
+			{Name: "pointer_balance", Level: "warning", Expected: ">30000"},
+		},
+	}
+}
+
+func saveConfig(filename string, config *Config) error {
+	data, err := json.MarshalIndent(config, "", "  ")
+	if err != nil {
+		return err
+	}
+	return os.WriteFile(filename, data, 0644)
+}
+
+func loadConfig(filename string) (*Config, error) {
+	if _, err := os.Stat(filename); os.IsNotExist(err) {
+		config := createDefaultConfig()
+		err := saveConfig(filename, config)
+		if err != nil {
+			return nil, err
+		}
+		return config, errors.New("\"brainfuck.json\" not found. Used default config")
+	}
+
+	data, err := os.ReadFile(filename)
+	if err != nil {
+		return nil, err
+	}
+
+	var config Config
+	err = json.Unmarshal(data, &config)
+	if err != nil {
+		return nil, err
+	}
+
+	return &config, nil
+}
\ No newline at end of file