Nejat Hakan | Systems & Infrastructure Engineering
Welcome to the Knowledge Base
This platform is a hands-on, production-grade engineering reference dedicated to deterministic Linux systems, sovereign infrastructure, high-concurrency data architectures, and hardware-level computing.
Every modern backend application, distributed system, and data pipeline relies on an uncompromising substrate. The guides documented here focus on building, automating, and hardening that exact foundation using open-source technologies on Debian Linux: practical, reproducible, and stripped of ephemeral abstractions.
Core Engineering Domains
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About & Engineering Philosophy
Engineering profile, architectural principles, zero cloud lock-in philosophy, and professional background in sovereign systems engineering.
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Systems & Infrastructure
Deterministic Linux kernel architecture, enterprise networking, stateful packet filtering, and sovereign self-hosted cloud environments.
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Software & Data Engineering
Polyglot systems programming (C, Rust, Go, Python, Java), high-concurrency relational databases, and high-performance data science on Linux.
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Hardware & Sovereign Labs
Bare-metal Raspberry Pi 5 embedded engineering, physical bus protocols (GPIO/I2C/SPI), and sovereign Bitcoin Citadel node infrastructure.