ThoseYearsBrian

This is ThoseYearsBrian’s personal blog, focused on technical building and network security practice.

The content focuses on the ongoing development and design philosophy of Aegis, the Surge personal digital firewall project.

Aegis is an open source security ruleset committed to technical neutrality, information transparency, and independence.

It aims to help everyone build their own network defense and take control of their own digital sovereignty.

Core project philosophy: give users the right to know and control their network traffic.

Follow along to help build a more transparent and controllable network environment.

Explore the Core Capabilities of Aegis

Aegis is a personal digital firewall ruleset based on Surge. It helps users accurately identify and classify traffic locally on iOS and macOS, then define traffic policies according to their own need

The Design Intent of Aegis

I began paying attention to device security not out of technical curiosity, but because of a persistent sense of security anxiety. In real-world use, I repeatedly encountered abnormal communication a

What Is Included in Aegis

Aegis is a personal digital firewall ruleset based on Surge. It helps users accurately identify and classify traffic locally on iOS and macOS, then define traffic policies according to their own need

Core Reasons to Choose Aegis

Aegis is a personal digital firewall ruleset based on Surge. It helps users accurately identify and classify traffic locally on iOS and macOS, then define traffic policies according to their own need

How to Use the Aegis Ruleset

ThoseYearsBrian
Usage
06 Jan, 2026

Before using Aegis, it is necessary to briefly explain its position. Aegis is a personal digital firewall ruleset based on Surge. It helps users accurately identify and classify traffic locally on i