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From Payment to Shipping: How We Built a Cross-Border Order State Machine That Solved Idempotency and Callback Chaos

From Payment to Shipping: How We Built a Cross-Border Order State Machine That Solved Idempotency and Callback Chaos

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5 min read
When to Build a Queue-Based Architecture vs a Simpler Request-Response Model

When to Build a Queue-Based Architecture vs a Simpler Request-Response Model

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4 min read
designing multi-tenant data isolation without over-engineering it

designing multi-tenant data isolation without over-engineering it

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4 min read
Stop Single-Agent Hallucinations: Multi-Agent Deliberation Loops with Spring AI & JEP 480

Stop Single-Agent Hallucinations: Multi-Agent Deliberation Loops with Spring AI & JEP 480

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2 min read
How to design safe tool permissions for AI agents in production apps

How to design safe tool permissions for AI agents in production apps

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6 min read
SQL vs NoSQL: A Simple Guide to Picking the Right Database

SQL vs NoSQL: A Simple Guide to Picking the Right Database

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2 min read
6 AI Gateways Compared for 2026: Routing, Governance, Caching, and Observability

6 AI Gateways Compared for 2026: Routing, Governance, Caching, and Observability

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10 min read
Ditch Hibernate Validator: Enforce Domain Invariants with Java 21 Record Patterns and Guard Clauses

Ditch Hibernate Validator: Enforce Domain Invariants with Java 21 Record Patterns and Guard Clauses

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2 min read
How I Reduced Peak Memory from 71.5 MB to 1.8 MB Without a Garbage Collector

How I Reduced Peak Memory from 71.5 MB to 1.8 MB Without a Garbage Collector

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2 min read
Stop Wasting Tokens: Building a Sub-50ms Semantic Cache with Redis

Stop Wasting Tokens: Building a Sub-50ms Semantic Cache with Redis

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3 min read
Taming Document Chaos: Building Resilient Cloud-Native Processing Pipelines

Taming Document Chaos: Building Resilient Cloud-Native Processing Pipelines

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3 min read
Stop Burning Claude Tokens: Propagate SSE Disconnects in Spring Boot

Stop Burning Claude Tokens: Propagate SSE Disconnects in Spring Boot

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2 min read
Assignment Is Not Ownership

Assignment Is Not Ownership

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2 min read
From Chaos to Consistency: Building an Order Sync Engine for Cross-Border Daigou

From Chaos to Consistency: Building an Order Sync Engine for Cross-Border Daigou

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4 min read
hearth is what I built to schedule every job on my homelab's GPU

hearth is what I built to schedule every job on my homelab's GPU

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11 min read
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