Building with grit & empathy

Full-stack developer, SRE and security researcher, building from Yogyakarta.

View my work Get in touch

Beyond the code

I specialize in creating digital solutions that bridge the gap between technical excellence and human-centric design. From AI-driven systems to high-performance CLI tools.

I am Khairu Aqsara, a Yogyakarta-based developer who believes that software is more than just logic: it’s a foundation for human progress.

My journey is driven by an authentic pride in the craft. Beyond traditional development, I am an active participant in the cybersecurity community, frequently competing in CTF (Capture The Flag) competitions and documenting my findings. Whether I’m optimizing a Kubernetes cluster, architecting a Laravel backend, or analyzing vulnerabilities, I approach every project with the mindset of a “Kuli Kode”: a dedicated laborer who values grit, persistence, and continuous learning.

When I’m not in front of a terminal, you’ll find me being a devoted father or immersing myself in the world of cinema. I believe that being a movie enthusiast helps me understand storytelling, which translates into building better user experiences.

Khairu Aqsara
wenkhairu

VerifiedGitHub Developer Program

Khairu Aqsara's Portrait

Selected works

A showcase of passion projects and technical solutions.

View all repositories
Host Scanner after a scan of 192.168.1.0/24, listing 11 active devices with their IP, MAC address, vendor and latency
hostscanner after a scan of 192.168.1.0/24, running in a terminal.

  1. moodle-blocks_terusrag

    A sophisticated Moodle block that implements Retrieval-Augmented Generation (RAG) for AI-driven personalized learning experiences.

    • PHP
    • AI
    • Moodle

  2. hostscanner

    Fast network host discovery tool written in Go, featuring a sleek and efficient Terminal User Interface (TUI) for network administrators.

    • Go
    • TUI
    • Networking

  3. MoodleDocks

    A powerful infrastructure tool designed for rapid Moodle deployment, providing easy-to-manage instances for educational environments and development.

    • Docker
    • DevOps
    • Moodle

  4. moodle_dev_mcp

    A Model Context Protocol (MCP) server that provides AI agents with deep access to Moodle developer documentation and technical standards.

    • MCP
    • AI
    • Moodle

  5. git-cs

    A powerful shell script for selective Git commits, enabling developers to stage and commit changes with an interactive CLI experience.

    • Shell
    • Git
    • Automation

  6. idr-agent-converter

    A specialized data processing tool designed for AI agents to handle Indonesian Rupiah (IDR) conversions and formatting with high precision.

    • Python
    • AI Agents

The security mindset

Software security isn’t a feature; it’s a fundamental requirement. My background in CTFs allows me to approach development from an attacker’s perspective, ensuring that the systems I build are resilient by design.

Sharpening the edge through competitive security.

I participate in competitive security (CTF) as a disciplined way to stress-test my understanding of Web Exploitation and Infrastructure Security. This active research translates theoretical vulnerabilities into practical defensive strategies, ensuring my architectural decisions are grounded in modern security realities.

CTF Writeups Last CTF Challenge

  • Vulnerability Research

    Deep dives into software internals to identify and mitigate potential attack vectors.

  • Infrastructure Hardening

    Applying SRE principles to secure Kubernetes and cloud-native environments.

Technical arsenal

A diverse range of technologies leveraged to build scalable and modern software.

  • Backend & Cloud

    • PHP (Laravel / Moodle)
    • Go & Python
    • Kubernetes & Docker
    • SRE & DevOps

  • Web Interface

    • JavaScript / ES6+
    • Tailwind CSS
    • Chrome Extensions
    • Responsive Design

  • AI & Security

    • AI RAG Implementation
    • CTF & Vuln Analysis
    • Post-Quantum Crypto
    • Terminal UIs (Go)

  • Workflow

    • Git (Power User)
    • Bash & Zsh Scripting
    • Linux Administration
    • CI/CD Pipelines

Kuli Kode: the art of digital labor

“In an era where AI can generate code, the value of a developer lies in their empathy, their judgment, and their willingness to labor in the trenches to build foundations that last.”

  • Grit

    Persistence in solving the most complex architectural bottlenecks without taking shortcuts.

  • Craft

    Viewing every line of code as a building block that deserves care, precision, and authentic pride.

  • Humanity

    Putting people first, whether it’s my family, my team, or the end-users of my software.

Let’s build something remarkable

Currently open to new collaborations and challenging technical problems.

Send an Email GitHub
Network cables feeding a rack of servers