diff --git a/.vscode/launch.json b/.vscode/launch.json
index 8482791..c6115de 100644
--- a/.vscode/launch.json
+++ b/.vscode/launch.json
@@ -6,6 +6,7 @@
 			"type": "extensionHost",
 			"request": "launch",
 			"args": [
+				"--disable-extensions",
 				"--extensionDevelopmentPath=${workspaceFolder}"
 			],
 			"outFiles": [
diff --git a/.vscode/settings.json b/.vscode/settings.json
index 8084fa3..a793b40 100644
--- a/.vscode/settings.json
+++ b/.vscode/settings.json
@@ -1,10 +1,10 @@
 {
 	"files.exclude": {
 		"out": false,
-		".vscode-test": true,
 	},
 	"search.exclude": {
-		"out": true
+		"out": true,
+		".vscode-test": true,
 	},
 	"typescript.tsc.autoDetect": "off",
 	"git.branchProtection": [ ]
diff --git a/.vscodeignore b/.vscodeignore
index 72aa0fe..dd881d8 100644
--- a/.vscodeignore
+++ b/.vscodeignore
@@ -2,10 +2,7 @@
 .vscode-test/**
 src/**
 .gitignore
-.yarnrc
-vsc-extension-quickstart.md
 **/tsconfig.json
 **/.eslintrc.json
 **/*.map
 **/*.ts
-**/.vscode-test.*
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 9f027b3..1699ad4 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,4 +1,8 @@
 # Changelog
+### v1.0.1
+
+- Refactor Configuration to a separate class
+
 ### v1.0.0
 
 - Add example to readme
diff --git a/package-lock.json b/package-lock.json
index 3d2e265..628c621 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "dotfiles",
-  "version": "1.0.0",
+  "version": "1.0.1",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "dotfiles",
-      "version": "1.0.0",
+      "version": "1.0.1",
       "license": "MIT",
       "devDependencies": {
         "@types/mocha": "^10.0.6",
diff --git a/package.json b/package.json
index 64a73f5..f37ce40 100644
--- a/package.json
+++ b/package.json
@@ -8,7 +8,7 @@
   },
   "description": "Apply dotfiles from settings",
   "icon": "images/icon-small.png",
-  "version": "1.0.0",
+  "version": "1.0.1",
   "license": "MIT",
   "preview": true,
   "engines": {
diff --git a/src/Configuration.ts b/src/Configuration.ts
new file mode 100644
index 0000000..2b07ec3
--- /dev/null
+++ b/src/Configuration.ts
@@ -0,0 +1,37 @@
+import path from 'path';
+import * as vscode from "vscode";
+
+export default class Configuration {
+	readonly namespace: string;
+	readonly logger?: (msg: string) => void;
+
+	constructor(namespace: string, logger: (msg: string) => void) {
+		this.namespace = namespace;
+		this.logger = logger;
+	}
+
+	getDirectoryPath() {
+		let directory = vscode.workspace.getConfiguration(this.namespace).get<string>("directory") || process.env["XDG_CONFIG_HOME"] || path.join(process.env["HOME"]!, ".config");
+		if (directory.endsWith("/")) {
+			return directory.slice(directory.length - 1);
+		}
+		return directory;
+	}
+
+	getFiles() {
+		return vscode.workspace.getConfiguration(this.namespace).get<{ [key: string]: string; }>("files", {});
+	}
+
+	async setFiles(files: { [key: string]: string; }) {
+		try {
+			await vscode.workspace.getConfiguration(this.namespace).update("files", files, vscode.ConfigurationTarget.Global);
+		} catch (err) {
+			this.logger?.(`${new Date().toLocaleString()}: failed to update files: ${err}`);
+			vscode.window.showErrorMessage("Unable to update dotfiles.files: " + err);
+		}
+	}
+
+	shouldAutoUpdate() {
+		return vscode.workspace.getConfiguration(this.namespace).get<boolean>("autoUpdate", false);
+	}
+}
diff --git a/src/extension.ts b/src/extension.ts
index 0e4bbc0..9ca7b53 100644
--- a/src/extension.ts
+++ b/src/extension.ts
@@ -1,38 +1,15 @@
 import * as fs from "fs/promises";
 import path from 'path';
 import * as vscode from 'vscode';
+import Configuration from "./Configuration";
 
-const configNamespace = "dotfiles";
+export const configNamespace = "dotfiles";
 const outputChannel = vscode.window.createOutputChannel(configNamespace);
 
-function getDirectoryPath() {
-	let directory = vscode.workspace.getConfiguration(configNamespace).get<string>("directory") || process.env["XDG_CONFIG_HOME"] || path.join(process.env["HOME"]!, ".config");
-	if (directory.endsWith("/")) {
-		return directory.slice(directory.length - 1);
-	}
-	return directory;
-}
-
-function getFiles() {
-	return vscode.workspace.getConfiguration(configNamespace).get<{ [key: string]: string; }>("files", {});
-}
-
-async function setFiles(files: { [key: string]: string; }) {
-	try {
-		await vscode.workspace.getConfiguration(configNamespace).update("files", files, vscode.ConfigurationTarget.Global);
-	} catch (err) {
-		outputChannel.appendLine(`${new Date().toLocaleString()}: failed to update files: ${err}`);
-		vscode.window.showErrorMessage("Unable to update dotfiles.files: " + err);
-	}
-}
-
-function shouldAutoUpdate() {
-	return vscode.workspace.getConfiguration(configNamespace).get<boolean>("autoUpdate", false);
-}
-
 async function apply() {
-	const directory = getDirectoryPath();
-	for (const [file, content] of Object.entries(getFiles())) {
+	const configuration = new Configuration(configNamespace, outputChannel.appendLine);
+	const directory = configuration.getDirectoryPath();
+	for (const [file, content] of Object.entries(configuration.getFiles())) {
 		const filePath = path.join(directory, file);
 		try {
 			await fs.stat(filePath);
@@ -45,24 +22,25 @@ async function apply() {
 }
 
 function didSave(doc: vscode.TextDocument) {
-	if (!shouldAutoUpdate()) {
+	const configuration = new Configuration(configNamespace, outputChannel.appendLine);
+	if (!configuration.shouldAutoUpdate()) {
 		return;
 	}
 	if (doc.uri.scheme !== "file") {
 		return;
 	}
-	const directory = getDirectoryPath();
+	const directory = configuration.getDirectoryPath();
 	if (!doc.uri.path.startsWith(directory + "/")) {
 		return;
 	}
-	const files = getFiles();
+	const files = configuration.getFiles();
 	const relativePath = doc.uri.path.slice(directory.length + 1);
 	if (!files[relativePath]) {
 		outputChannel.appendLine(`${new Date().toLocaleString()}: file ${relativePath} in ${directory} not found in settings`);
 		return;
 	}
 	files[relativePath] = doc.getText();
-	setFiles(files);
+	configuration.setFiles(files);
 	outputChannel.appendLine(`${new Date().toLocaleString()}: updated ${relativePath}`);
 }
 
@@ -71,7 +49,8 @@ export function activate(context: vscode.ExtensionContext) {
 		vscode.commands.registerCommand("dotfiles.apply", apply),
 		vscode.workspace.onDidSaveTextDocument(didSave)
 	);
-	if (shouldAutoUpdate()) {
+	const configuration = new Configuration(configNamespace, outputChannel.appendLine);
+	if (configuration.shouldAutoUpdate()) {
 		apply();
 	}
 }
diff --git a/src/test/extension.test.ts b/src/test/extension.test.ts
index 4ca0ab4..6f4eebf 100644
--- a/src/test/extension.test.ts
+++ b/src/test/extension.test.ts
@@ -1,15 +1,17 @@
-import * as assert from 'assert';
+import * as assert from "assert";
+import * as vscode from "vscode";
+import Configuration from "../Configuration";
 
-// You can import and use all API from the 'vscode' module
-// as well as import your extension to test it
-import * as vscode from 'vscode';
-// import * as myExtension from '../../extension';
-
-suite('Extension Test Suite', () => {
-	vscode.window.showInformationMessage('Start all tests.');
-
-	test('Sample test', () => {
-		assert.strictEqual(-1, [1, 2, 3].indexOf(5));
-		assert.strictEqual(-1, [1, 2, 3].indexOf(0));
+suite("Extension", () => {
+	suiteSetup(() => {
+		vscode.extensions.getExtension("grg.dotfiles")!.activate();
+	});
+	test("setFiles is idempotent", () => {
+		const testNamespace = "dotfiles";
+		const configuration = new Configuration(testNamespace, () => { });
+		const files = configuration.getFiles();
+		configuration.setFiles(files);
+		configuration.setFiles(files);
+		assert.deepStrictEqual(configuration.getFiles(), files);
 	});
 });