The Evolution of Clash Clients on macOS Sequoia

With the release of macOS Sequoia, Apple has further tightened its grip on network security and system-level permissions. For users who rely on the Mihomo (Clash Meta) core, Clash Nyanpasu has emerged as the premier open-source successor to the now-archived Clash for Windows and various aging Mac forks. It offers a modern interface and native support for the Mihomo core, which is essential for handling the advanced routing required in 2026.

This guide focuses on achieving a "set and forget" configuration using TUN mode. While system proxy settings are sufficient for web browsing, Sequoia's sandboxing of background processes and system services often bypasses standard HTTP proxies. TUN mode creates a virtual network interface, ensuring that everything from terminal commands to iCloud sync flows through your proxy rules.

Step 1: Installation and Gatekeeper Approval

Before configuring the software, you must ensure the application has the necessary permissions to interact with the macOS Sequoia networking stack. Running a network tool from a random directory can lead to persistent helper tool failures.

1. Download the latest .dmg or .pkg from the official Clash Nyanpasu repository. Ensure you choose the arm64 version for Apple Silicon (M1/M2/M3/M4) or x64 for Intel Macs.
2. Drag the application into the /Applications folder. Do not skip this step; macOS Sequoia applies stricter translocation rules to apps run from the Downloads folder.
3. Right-click the app and select Open to bypass the initial Gatekeeper check.
4. Upon first launch, Nyanpasu may request to install a Helper Tool. Enter your macOS user password. This tool is required to modify system routing tables and initiate TUN interfaces.

Step 2: Importing Profiles and Core Selection

Nyanpasu is a GUI wrapper. The logic resides in the core. For 2026-era features like Hysteria2 or advanced TUIC protocols, you must ensure the Mihomo core is active.

In the Settings tab, locate the "Core" section. Ensure Mihomo is selected. Then, navigate to the Profiles tab:

• Click Import and paste your subscription URL.
• Once downloaded, right-click the profile to Edit or Update.
• Click on the profile card to activate it. A purple or blue glow usually indicates the active profile.

Step 3: Enabling TUN Mode for System-Wide Coverage

System Proxy mode (the default) only tells macOS to update the proxy settings in System Settings → Network. This is often ignored by applications like Spotify, Discord, and GitHub Desktop. To fix this, we use TUN mode.

Configuring the TUN Settings

In Nyanpasu, go to Settings → Kernel Settings (or TUN Settings depending on your version). Ensure the following parameters are set for macOS Sequoia compatibility:

tun:
  enable: true
  stack: mixed # 'mixed' or 'system' is recommended for Sequoia
  auto-route: true
  auto-detect-interface: true
  dns-hijack:
    - any:53
    - tcp://any:53

After saving these settings, toggle the TUN Mode switch in the main dashboard. macOS will prompt you with a system notification: "Clash Nyanpasu" Would Like to Add Proxy Configurations. You must click Allow. If you miss this popup, the TUN interface will stay "Down" even if the switch is "On."

Step 4: Preventing DNS Leaks on macOS

One of the most common issues on macOS Sequoia is the "DNS Leak," where the OS ignores the proxy's DNS and uses the ISP's default. This results in failed connections to blocked domains despite having a working tunnel.

Within your Nyanpasu configuration (or via the Override feature), ensure your DNS section looks like this:

Troubleshooting Common Sequoia Issues

The "No Internet" Symptom

If your Wi-Fi icon shows a small exclamation mark after enabling TUN, macOS Sequoia's Limit IP Address Tracking feature might be conflicting with the TUN interface. Go to System Settings → Wi-Fi, click Details next to your network, and toggle off "Limit IP Address Tracking."

Helper Tool Version Mismatch

If you see a "Helper version mismatch" error in the logs, it usually means a previous installation of Clash Verge or another client left a legacy helper behind. You can manually reset the helper by running the following in the Terminal:

sudo rm /Library/PrivilegedHelperTools/io.github.clash-nyanpasu.helper

Then, restart Nyanpasu and reinstall the helper when prompted.

Summary Checklist

• App Location: Must be in /Applications.
• Core: Use Mihomo for the latest protocol support.
• TUN Mode: Ensure auto-route is enabled and the macOS Network Extension is approved in System Settings.
• DNS: Use fake-ip to ensure Sequoia doesn't leak queries to your ISP.

With these settings, Clash Nyanpasu provides a robust, high-performance proxy environment on macOS Sequoia. Whether you are a developer needing stable access to global registries or a user looking for privacy, the combination of Mihomo and TUN mode remains the gold standard in 2026.