diff --git a/snapd.json b/snapd.json
index d8b0536..3fe8034 100644
--- a/snapd.json
+++ b/snapd.json
@@ -1,5 +1,14 @@
 {
-	"git": "/var/lib/snapd",
-	"project": "/",
-	"email": "user@site.domain"
+	"git": "/tmp/testgit",
+	"project": "/home/alexander/Programming/new/dlang/snapd/source",
+	"email": "user@site.domain",
+	"user": "snapd",
+	"presnap": [
+		"/usr/bin/ls",
+		"/usr/local/bin/script.sh"
+	],
+	"postsnap": [
+		"/usr/bin/ls",
+		"/usr/local/bin/script.sh"
+	]
 }
diff --git a/source/app.d b/source/app.d
index 3ac5b7a..72df7c3 100644
--- a/source/app.d
+++ b/source/app.d
@@ -2,8 +2,6 @@ import snapd;
 import commandr;
 import std.file;
 
-import std.stdio : writeln;
-
 import core.stdc.stdlib : EXIT_SUCCESS, EXIT_FAILURE;
 
 private string programName = "snapd";
@@ -11,6 +9,9 @@ private string programName = "snapd";
 int main(string[] args)
 {
 	auto argumets = new Program(programName, snapdVersion)
+		.add(new Command("init", "Initializing the repository for storing snapshots"))
+		.add(new Command("status", "Checking the status of tracked files"))
+		.add(new Command("create", "Create a new backup"))
 		.add(new Option("c", "config", "Сonfiguration file path")
 			.optional
 			.validateEachWith(
@@ -31,5 +32,23 @@ int main(string[] args)
 		return EXIT_FAILURE;
 	}
 
+	auto snapd = new Snapd(config);
+
+	try {
+		argumets
+			.on("init", (init) {
+				snapd.initialize();
+			})
+			.on("status", (status) {
+				snapd.status();
+			})
+			.on("create", (create) {
+				snapd.create();
+			});
+	} catch (SnapdException e) {
+		e.print();
+		return EXIT_FAILURE;
+	}
+
 	return EXIT_SUCCESS;
 }
diff --git a/source/snapd/config/config.d b/source/snapd/config/config.d
index 5822758..e6d7f8f 100644
--- a/source/snapd/config/config.d
+++ b/source/snapd/config/config.d
@@ -12,6 +12,7 @@ class SnapdConfig {
 	private string _git;
 	private string _project;
 	private string _email;
+	private string _user;
 
 	private bool isValidEmail(string email) {
 		auto emailPattern = ctRegex!r"^[a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,}$";
@@ -85,9 +86,22 @@ class SnapdConfig {
 				"Invalid email address provided in the \"email\" parameter:\n\t"
 				~ _email
 			);
+		
+		if ("user" !in jsonData)
+			throw new SnapdConfigException(
+				"The configuration file is missing the \"user\" parameter"
+			);
+
+		_user = jsonData["user"].str;
+
+		if (!_user.length)
+			throw new SnapdConfigException(
+				"The \"user\" parameter must contain an user name"
+			);
 	}
 
 	@property string git() const { return _git; }
 	@property string project() const { return _project; }
 	@property string email() const { return _email; }
+	@property string user() const { return _user; }
 }
diff --git a/source/snapd/core/core.d b/source/snapd/core/core.d
new file mode 100644
index 0000000..2d285c4
--- /dev/null
+++ b/source/snapd/core/core.d
@@ -0,0 +1,109 @@
+module snapd.core.core;
+
+import snapd.config;
+import std.format;
+import std.stdio;
+import std.array;
+import std.exception;
+import std.process;
+import std.algorithm;
+import std.string;
+
+class SnapdException : Exception {
+	this(string msg, string file = __FILE__, size_t line = __LINE__) {
+		super(msg, file, line);
+	}
+
+	void print() {
+		writeln(msg);
+	}
+}
+
+class Snapd {
+	private string[] _baseCommand;
+	private SnapdConfig _config;
+
+	this(SnapdConfig config) {
+		_baseCommand = format(
+			"git --git-dir=%s --work-tree=%s",
+			config.git, config.project
+		).split();
+		_config = config;
+	}
+
+	void initialize() {
+		auto result = execute(_baseCommand ~ "init");
+		if (result.status)
+			throw new SnapdException(
+				"A Git repository initialization error occurred:\n"
+				~ result.output
+			);
+
+		result = execute(
+			_baseCommand ~ ["config", "user.email", _config.email]
+		);
+		if (result.status)
+			throw new SnapdException(
+				"A Git repository initialization error occurred:\n"
+				~ result.output
+			);
+
+		result = execute(
+			_baseCommand ~ ["config", "user.name", _config.user]
+		);
+		if (result.status)
+			throw new SnapdException(
+				"A Git repository initialization error occurred:\n"
+				~ result.output
+			);
+
+		writeln(
+			"The Git repository has been initialized successfully: "
+			~ _config.git
+		);
+	}
+
+	void status() {
+		auto result = execute(
+			_baseCommand ~ ["status", "--porcelain"]
+		);
+		if (result.status)
+			throw new SnapdException(
+				"An error occurred while checking the file tracking status:\n"
+				~ result.output
+			);
+
+		writeln("The following list of files requires backup:");
+
+		/**
+		Цепочка выполняет разбивку по переводу на новую строку,
+		отсеивает пустые строки, перебирает в цикле имеющиеся строки,
+		выводит только вторую часть строки (разделенную по пробелу)
+		*/
+		result.output.split('\n').filter!(e => !e.strip.empty).each!((e) {
+			writefln("\t/%s", e.strip.split[1]);
+		});
+	}
+
+	void create() {
+		auto result = execute(
+			_baseCommand ~ ["add", "."]
+		);
+		if (result.status)
+			throw new SnapdException(
+				"Failed to prepare files for archiving:\n"
+				~ result.output
+			);
+
+		result = execute(
+			_baseCommand ~ ["commit", "-m", "test"]
+		);
+		if (result.status)
+			throw new SnapdException(
+				"Failed to create a backup:\n"
+				~ result.output
+			);
+
+		writeln("Backup was created successfully");
+	}
+}
diff --git a/source/snapd/core/package.d b/source/snapd/core/package.d
new file mode 100644
index 0000000..ac6ebaf
--- /dev/null
+++ b/source/snapd/core/package.d
@@ -0,0 +1,3 @@
+module snapd.core;
+
+public import snapd.core.core;
diff --git a/source/snapd/package.d b/source/snapd/package.d
index 4f5e10f..4360689 100644
--- a/source/snapd/package.d
+++ b/source/snapd/package.d
@@ -2,3 +2,4 @@ module snapd;
 
 public import snapd.version_;
 public import snapd.config;
+public import snapd.core;
diff --git a/source/snapd/version_.d b/source/snapd/version_.d
index 98d0114..bc63b1b 100644
--- a/source/snapd/version_.d
+++ b/source/snapd/version_.d
@@ -1,3 +1,3 @@
 module snapd.version_;
 
-enum snapdVersion = "0.0.2";
+enum snapdVersion = "0.0.3";