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Serverless & Microservices
Functions, event buses, and resilient service meshes at scale.
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DockFlare: Docker labels, Cloudflare Tunnels, and a little less dashboard clicking
2+ hour, 35+ min ago (792+ words) I wanted to share a project I started in 2025 to solve something that kept getting on my nerves in my own homelab. Every time I deployed another container, I found myself back in the Cloudflare dashboard. Add a hostname, point…...
Serverless Execution Architecture: How Platforms Start Functions Without Persistent Processes
6+ hour, 19+ min ago (142+ words) When designing distributed systems, engineers must weigh the operational overhead of persistent infrastructure against the runtime unpredictability of serverless execution. FaaS platforms eliminate idle capacity costs by scaling down to zero, but they trade away deterministic latency profiles and continuous…...
AWS Step Functions vs Camunda for Sagas: Two Orchestrators, Different Blast Radii
7+ hour, 34+ min ago (39+ words) Here's a trap I've watched smart teams walk into. They pick a saga orchestrator by comparing the two... Tagged with aws, architecture, microservices, saga....
Turn a Spring Boot app into a distributed cron cluster
7+ hour, 33+ min ago (343+ words) @Scheduled is fine until it isn't.... Tagged with architecture, java, opensource, springboot....
AWS Lambda Pushes Serverless Toward Long-Running Workloads
1+ day, 16+ hour ago (656+ words) Lily Mara explains how to avoid high-risk software rewrites through incremental FFI refactoring. She shares how engineering teams can replace Python bottlenecks with Rust via PyO3, demonstrating how to achieve dramatic function-level speedups, seamless integration testing, and meaningful infrastructure cost savings…...
Diagnosing and Fixing Flaky Microservice Tests
10+ hour, 10+ min ago (337+ words) Flaky tests are the silent productivity tax on microservice teams: they consume developer time, erode trust in CI, and hide real defects behind intermittent noise. I treat test flakiness the same way I treat production incidents—measure impact, isolate scope,…...
I Built a Spring Boot Starter to Handle Duplicate API Requests
10+ hour, 40+ min ago (342+ words) A client sends a request to create an order. The server processes it, but the connection drops before the response reaches the client. The client retries. How can the API recognise that retry and avoid creating another order? This is…...
Edge Computing in Practice: Lowering Latency with Cloudflare Workers
12+ hour, 35+ min ago (171+ words) Cloudflare Workers provide a serverless execution environment directly on Cloudflare's global edge network. This is not merely a CDN; it's a compute platform that runs JavaScript, TypeScript, or WebAssembly code in isolated V8 isolates. The key architectural advantages are: Let's walk…...
What breaks when you self-host a TURN server (coturn — symptom, cause, fix)
14+ hour, 12+ min ago (1592+ words) The first article in this series was the traps inside the code. The second was the layer underneath — the candidates that lie, the UDP firewall nobody looks at, the reverse proxy that reaps an idle socket. This one is about…...
Presigned URLs and Event Notifications with S3 and SNS
21+ hour, 30+ min ago (1250+ words) Up until now, every file I've touched in S3 has gone through the console, or through a bucket policy that made things public for everyone. Today's problem was different: how do you let one specific person upload or download one specific…...