diff --git a/src/config.ts b/src/config.ts
index 76a6cc6..598d5f4 100644
--- a/src/config.ts
+++ b/src/config.ts
@@ -1,3 +1,5 @@
+import { homedir } from "os";
+
 import { config } from "dotenv";
 import { z } from "zod";
 
@@ -26,5 +28,5 @@ const EnvironmentSchema = z.object({
  */
 export const env = EnvironmentSchema.parse({
   LOG_LEVEL: process.env.LOG_LEVEL,
-  HOME: process.env.HOME,
+  HOME: homedir(),
 });
diff --git a/src/core/browsers/chrome/ChromeApplicationSupport.ts b/src/core/browsers/chrome/ChromeApplicationSupport.ts
index 6e5ec95..ab8b454 100644
--- a/src/core/browsers/chrome/ChromeApplicationSupport.ts
+++ b/src/core/browsers/chrome/ChromeApplicationSupport.ts
@@ -1,16 +1,15 @@
+import { homedir } from "os";
 import { join } from "path";
 
-import { HOME } from "../../../global";
-
 /**
  * The path to Chrome's application support directory on macOS
  * This constant is used to locate Chrome's profile and cookie storage directories
- * @example
+ * @throws {Error} If unable to determine user's home directory
  */
-export const chromeApplicationSupport = join(
-  HOME ?? "",
-  "Library",
-  "Application Support",
-  "Google",
-  "Chrome",
-);
+export const chromeApplicationSupport = (() => {
+  const home = homedir();
+  if (!home) {
+    throw new Error("Unable to determine user home directory");
+  }
+  return join(home, "Library", "Application Support", "Google", "Chrome");
+})();
diff --git a/src/core/browsers/firefox/FirefoxCookieQueryStrategy.ts b/src/core/browsers/firefox/FirefoxCookieQueryStrategy.ts
index 7896971..6cf6aa7 100644
--- a/src/core/browsers/firefox/FirefoxCookieQueryStrategy.ts
+++ b/src/core/browsers/firefox/FirefoxCookieQueryStrategy.ts
@@ -1,10 +1,10 @@
+import { homedir } from "os";
 import { join } from "path";
 
 import { sync } from "glob";
 
 import { logDebug, logWarn } from "@utils/logHelpers";
 
-import { env } from "../../../config";
 import {
   BrowserName,
   CookieQueryStrategy,
@@ -24,22 +24,18 @@ interface FirefoxCookieRow {
  * @returns An array of file paths to Firefox cookie databases
  */
 function findFirefoxCookieFiles(): string[] {
-  const files: string[] = [];
-  const homedir = env.HOME;
-
-  if (typeof homedir !== "string" || homedir.length === 0) {
-    logWarn("FirefoxCookieQuery", "HOME environment variable not set");
-    return files;
+  const home = homedir();
+  if (!home) {
+    logWarn("FirefoxCookieQuery", "Failed to get home directory");
+    return [];
   }
 
   const patterns = [
-    join(
-      homedir,
-      "Library/Application Support/Firefox/Profiles/*/cookies.sqlite",
-    ),
-    join(homedir, ".mozilla/firefox/*/cookies.sqlite"),
+    join(home, "Library/Application Support/Firefox/Profiles/*/cookies.sqlite"),
+    join(home, ".mozilla/firefox/*/cookies.sqlite"),
   ];
 
+  const files: string[] = [];
   for (const pattern of patterns) {
     const matches = sync(pattern);
     files.push(...matches);
diff --git a/src/core/browsers/safari/SafariCookieQueryStrategy.ts b/src/core/browsers/safari/SafariCookieQueryStrategy.ts
index 9fd6b7a..03a73ec 100644
--- a/src/core/browsers/safari/SafariCookieQueryStrategy.ts
+++ b/src/core/browsers/safari/SafariCookieQueryStrategy.ts
@@ -1,8 +1,8 @@
+import { homedir } from "os";
 import { join } from "path";
 
 import { logError } from "@utils/logHelpers";
 
-import { env } from "../../../config";
 import type {
   BrowserName,
   CookieQueryStrategy,
@@ -19,30 +19,14 @@ export class SafariCookieQueryStrategy implements CookieQueryStrategy {
    */
   public readonly browserName: BrowserName = "Safari";
 
-  /**
-   * Gets the user's home directory
-   * @returns The home directory path or empty string if not found
-   */
-  private getHomeDir(): string {
-    const homeDir = env.HOME;
-    if (typeof homeDir !== "string" || homeDir.trim().length === 0) {
-      logError(
-        "SafariCookieQueryStrategy",
-        "HOME environment variable not set",
-      );
-      return "";
-    }
-    return homeDir;
-  }
-
   /**
    * Gets the path to Safari's cookie database
-   * @param homeDir - The user's home directory
+   * @param home - The user's home directory
    * @returns Path to the cookie database
    */
-  private getCookieDbPath(homeDir: string): string {
+  private getCookieDbPath(home: string): string {
     return join(
-      homeDir,
+      home,
       "Library",
       "Containers",
       "com.apple.Safari",
@@ -115,12 +99,13 @@ export class SafariCookieQueryStrategy implements CookieQueryStrategy {
     name: string,
     domain: string,
   ): Promise<ExportedCookie[]> {
-    const homeDir = this.getHomeDir();
-    if (typeof homeDir !== "string" || homeDir.length === 0) {
+    const home = homedir();
+    if (typeof home !== "string" || home.length === 0) {
+      logError("SafariCookieQueryStrategy", "Failed to get home directory");
       return Promise.resolve([]);
     }
 
-    const cookieDbPath = this.getCookieDbPath(homeDir);
+    const cookieDbPath = this.getCookieDbPath(home);
     return Promise.resolve(this.decodeCookies(cookieDbPath, name, domain));
   }
 }
diff --git a/src/global.ts b/src/global.ts
index 24363fc..ad2f32a 100644
--- a/src/global.ts
+++ b/src/global.ts
@@ -1,3 +1,5 @@
+import { homedir } from "os";
+
 import { merge } from "lodash-es";
 
 /**
@@ -19,23 +21,15 @@ export const env: { [key: string]: string | undefined } = {};
 merge(env, process.env);
 
 /**
- * User's home directory path from environment variables
- * @throws Error if HOME environment variable is not set
+ * User's home directory path from os.homedir()
  * @example
  * // Access home directory path
  * const homePath = HOME; // '/home/username' or 'C:\Users\username'
  *
  * // Use in file path construction
  * const configPath = `${homePath}/.config/app`;
- *
- * // Error handling
- * if (typeof homePath === 'string' && homePath.length > 0) {
- *   // Use home path
- * } else {
- *   throw new Error('HOME environment variable is not set or empty');
- * }
  */
-export const HOME: string | undefined = env["HOME"];
+export const HOME = homedir();
 if (typeof HOME !== "string" || HOME.length === 0) {
-  throw new Error("HOME environment variable is not set or empty");
+  throw new Error("Failed to get home directory from os.homedir()");
 }