diff --git a/src/utils/osUtils.ts b/src/utils/osUtils.ts
new file mode 100644
index 0000000..7b1fd0f
--- /dev/null
+++ b/src/utils/osUtils.ts
@@ -0,0 +1,69 @@
+import * as os from 'os';
+import * as path from 'path';
+import { TerminalType } from '../models/types';
+
+export class OSUtils {
+  getPlatform(): NodeJS.Platform {
+    return process.platform;
+  }
+
+  isMacOS(): boolean {
+    return process.platform === 'darwin';
+  }
+
+  isLinux(): boolean {
+    return process.platform === 'linux';
+  }
+
+  isWindows(): boolean {
+    return process.platform === 'win32';
+  }
+
+  getHomeDir(): string {
+    return os.homedir();
+  }
+
+  getTmpDir(): string {
+    return os.tmpdir();
+  }
+
+  detectTerminalType(): TerminalType {
+    if (this.isMacOS()) {
+      return 'iterm2';
+    }
+    return 'tmux';
+  }
+
+  getDefaultShell(): string {
+    return process.env.SHELL || '/bin/bash';
+  }
+
+  expandPath(filePath: string): string {
+    if (filePath.startsWith('~')) {
+      return path.join(this.getHomeDir(), filePath.slice(1));
+    }
+    return filePath;
+  }
+
+  getTmuxPath(): string {
+    return this.isMacOS() ? '/usr/local/bin/tmux' : '/usr/bin/tmux';
+  }
+
+  getScreenPath(): string {
+    return this.isMacOS() ? '/usr/local/bin/screen' : '/usr/bin/screen';
+  }
+
+  async getCurrentCwd(): Promise<string> {
+    return process.cwd();
+  }
+
+  getEnv(key: string, defaultValue?: string): string | undefined {
+    return process.env[key] || defaultValue;
+  }
+
+  setEnv(key: string, value: string): void {
+    process.env[key] = value;
+  }
+}
+
+export const osUtils = new OSUtils();