Blog & Articles

In-depth technical write-ups, architecture breakdowns, software engineering principles, and hands-on tutorials.

Showing 13 of 13 articles
Autonomous AI Agents: Architecture, Cognitive Loops, and Multi-Agent Systems

Autonomous AI Agents: Architecture, Cognitive Loops, and Multi-Agent Systems

A deep-dive technical blueprint for modern AI agents: POMDP formalisms, perception-reasoning-action loops, memory architectures, tool-use protocols (MCP), multi-agent coordination, and sandboxed execution.

Hardianto
H
Hardianto
September 5, 2026
11 min read
AI AgentsAutonomous SystemsLLMs +5
Artificial Intelligence: From Foundational Models to Autonomous Agentic Systems

Artificial Intelligence: From Foundational Models to Autonomous Agentic Systems

A comprehensive, technical exploration of modern Artificial Intelligence: transformer mechanics, retrieval-augmented generation (RAG), autonomous multi-agent workflows, frontier benchmark evaluations, and alignment safety frameworks.

Hardianto
H
Hardianto
August 20, 2026
8 min read
AIMachine LearningDeep Learning +6
PostgreSQL Performance Tuning at Scale: Indexing Strategies, Buffer Cache, and Connection Pooling

PostgreSQL Performance Tuning at Scale: Indexing Strategies, Buffer Cache, and Connection Pooling

An architectural deep dive into PostgreSQL internals: interpreting EXPLAIN (ANALYZE, BUFFERS), B-Tree vs BRIN indexing mechanics, WAL write path optimization, autovacuum worker tuning, and PgBouncer transaction-mode connection pooling.

Hardianto
H
Hardianto
August 20, 2026
6 min read
PostgreSQLDatabasesPerformance +3
Production Kubernetes Hardening: Kernel Observability and Networking with eBPF & Cilium

Production Kubernetes Hardening: Kernel Observability and Networking with eBPF & Cilium

Modern Kubernetes cluster engineering: bypassing legacy iptables with eBPF socket-layer routing, Cilium service mesh without sidecars, kernel-level L7 security policies, and zero-downtime Pod Disruption Budgets (PDB).

Hardianto
H
Hardianto
August 5, 2026
6 min read
KuberneteseBPFDevOps +4
Demystifying Go Runtime Internals: The GMP Scheduler, Memory Allocator, and GC Mechanics

Demystifying Go Runtime Internals: The GMP Scheduler, Memory Allocator, and GC Mechanics

A low-level analysis of the Go runtime engine: work-stealing Goroutine scheduling (GMP model), network poller integration, TCMalloc-inspired multi-tiered memory allocation, and concurrent tri-color mark-sweep garbage collection.

Hardianto
H
Hardianto
July 28, 2026
7 min read
GoConcurrencySystems Programming +2
Computer Science 2026: Paradigms, Hardware Frontiers, and Distributed Resilience

Computer Science 2026: Paradigms, Hardware Frontiers, and Distributed Resilience

An in-depth technical analysis of the structural breakthroughs defining computer science: spatial computing pipelines, neuromorphic silicon architectures, post-quantum cryptographic standards (FIPS 203/204/205), and decentralized consensus algorithms.

Hardianto
H
Hardianto
July 14, 2026
5 min read
Computer ScienceHardwareAI +4
The Evolution of Computing: From Mechanical Engines to Quantum Coherence

The Evolution of Computing: From Mechanical Engines to Quantum Coherence

An authoritative chronological and architectural study of computing history: from Babbage and ENIAC through microprocessors, RISC vs. CISC battles, modern heterogeneous accelerators, and quantum computing paradigms.

Hardianto
H
Hardianto
June 18, 2026
6 min read
Computer HistoryTechnologyInnovation +5
Architecting Resilient Event-Driven Systems: Kafka Partitioning, Consumer Groups, and the Transactional Outbox Pattern

Architecting Resilient Event-Driven Systems: Kafka Partitioning, Consumer Groups, and the Transactional Outbox Pattern

Eliminating the dual-write problem in distributed microservices using PostgreSQL and Apache Kafka: implementing the Transactional Outbox Pattern with Debezium CDC, partition key hashing, idempotent consumer processing, and dead-letter retry topologies.

Hardianto
H
Hardianto
June 15, 2026
6 min read
Distributed SystemsKafkaMicroservices +2
High-Throughput Distributed Caching: Stampede Mitigation, Probabilistic Early Expiration, and Redis Cluster

High-Throughput Distributed Caching: Stampede Mitigation, Probabilistic Early Expiration, and Redis Cluster

Engineering fault-tolerant cache layers: comparing Cache-Aside with Write-Through, mitigating cache stampedes with singleflight and the XFetch probabilistic algorithm, Redis Cluster hash slots (CRC16), and memory eviction trade-offs.

Hardianto
H
Hardianto
May 30, 2026
6 min read
RedisCachingSystem Design +2
The Modern IoT Architecture: Matter, Edge AI, and Industrial Telemetry

The Modern IoT Architecture: Matter, Edge AI, and Industrial Telemetry

A deep architectural dive into the Internet of Things: standardized communication protocols (Matter, Thread, MQTT), Edge AI inferencing, industrial telemetry (IIoT), digital twins, and zero-trust security frameworks.

Hardianto
H
Hardianto
May 18, 2026
5 min read
IoTSmart HomeConnected Devices +6
Programming Languages 2026: Memory Safety, Concurrency, and Type System Evolutions

Programming Languages 2026: Memory Safety, Concurrency, and Type System Evolutions

A comprehensive technical exploration of modern programming languages: Rust ownership and borrow checker mechanics, Python 3.13 free-threaded GIL elimination, TypeScript advanced type algebra, Go concurrency primitives, and emerging systems languages.

Hardianto
H
Hardianto
April 28, 2026
5 min read
Programming LanguagesRustPython +5
Zero-Downtime Database Migrations: The Expand-and-Contract Pattern in High-Volume Production

Zero-Downtime Database Migrations: The Expand-and-Contract Pattern in High-Volume Production

Safely evolving relational database schemas without maintenance windows or lock contention: the 5-phase Expand and Contract lifecycle, lock-free column additions, asynchronous batch backfills, and blue-green API deployment backward compatibility.

Hardianto
H
Hardianto
April 10, 2026
5 min read
Database EngineeringDevOpsContinuous Delivery +2
Strengthening Digital Defenses: Enterprise Cybersecurity and Resilience in Indonesia

Strengthening Digital Defenses: Enterprise Cybersecurity and Resilience in Indonesia

A rigorous technical analysis of Indonesia cybersecurity landscape: regulatory compliance under Personal Data Protection Law (UU PDP No. 27/2022), Zero Trust Architecture (NIST SP 800-207), Ransomware mitigation, and SOC incident response.

Hardianto
H
Hardianto
March 10, 2026
6 min read
CybersecurityIndonesiaUU PDP +5