--- title: "Posts about developer productivity | Speedscale" description: "Browse posts in the developer productivity category." canonical: "https://speedscale.com/blog/category/developer-productivity/" --- # Posts about developer productivity Browse 76 posts in this category [![k6 tutorial: captured traffic with mocked backends](https://speedscale.com/_astro/featured-image.BaTIsYW0_ZMSbe8.webp)](https://speedscale.com/blog/speedscale-k6-tutorial/) Updated Oct 12, 2026 ### [k6 tutorial: captured traffic with mocked backends](https://speedscale.com/blog/speedscale-k6-tutorial/) Capture API traffic with Speedscale, export a k6 load scenario, and mock backend dependencies in Kubernetes with speedctl or locally with proxymock. [Developer Productivity](https://speedscale.com/blog/category/developer-productivity/) [Load Testing](https://speedscale.com/blog/category/load-testing/) [by Nate Lee](https://speedscale.com/blog/author/nate-lee/) [![Traffic mirroring in Kubernetes: Istio vs Speedscale](https://speedscale.com/_astro/traffic-mirroring.LPlmcf8U_12KDkE.webp)](https://speedscale.com/blog/traffic-mirroring-options-kubernetes/) Updated Oct 12, 2026 ### [Traffic mirroring in Kubernetes: Istio vs Speedscale](https://speedscale.com/blog/traffic-mirroring-options-kubernetes/) Compare Istio traffic mirroring with Speedscale replay in Kubernetes. Use capture, redaction, and dependency isolation for repeatable regression tests. [Developer Productivity](https://speedscale.com/blog/category/developer-productivity/) [Kubernetes](https://speedscale.com/blog/category/kubernetes/) [by Nate Lee](https://speedscale.com/blog/author/nate-lee/) [![Top 14 Postman Alternatives for API Testing in 2026](https://speedscale.com/_astro/featured-image.BwN4Uabo_1Ot1Oh.webp)](https://speedscale.com/blog/top-14-postman-alternatives/) Updated Jul 20, 2026 ### [Top 14 Postman Alternatives for API Testing in 2026](https://speedscale.com/blog/top-14-postman-alternatives/) A rebuilt 2026 guide to Postman alternatives. Which API clients are still maintained, what they cost, and which one fits local-first, gRPC, or team workflows. [API Testing](https://speedscale.com/blog/category/api-testing/) [Developer Productivity](https://speedscale.com/blog/category/developer-productivity/) [by Ken Ahrens](https://speedscale.com/blog/author/ken-ahrens/) [![Validate Spring Boot Upgrades with Traffic Replay](https://speedscale.com/_astro/featured-image.Def3H7lY_Zyvc36.webp)](https://speedscale.com/blog/spring-boot-migration-traffic-replay-validation/) Jun 7, 2026 ### [Validate Spring Boot Upgrades with Traffic Replay](https://speedscale.com/blog/spring-boot-migration-traffic-replay-validation/) Spring Boot upgrades silently change JSON contracts and autoconfiguration. Use traffic replay to catch every regression before production. [API Testing](https://speedscale.com/blog/category/api-testing/) [Developer Productivity](https://speedscale.com/blog/category/developer-productivity/) [Microservices](https://speedscale.com/blog/category/microservices/) [Traffic Replay](https://speedscale.com/blog/category/traffic-replay/) [by Speedscale Team](https://speedscale.com/blog/author/speedscale-team/) [![Run Local LLMs on Mac to Cut Claude Costs](https://speedscale.com/_astro/ollama-serve-200.3QYbVcjv_Z1nr0D3.webp)](https://speedscale.com/blog/local-llms-on-mac-cost-savings/) Apr 23, 2026 ### [Run Local LLMs on Mac to Cut Claude Costs](https://speedscale.com/blog/local-llms-on-mac-cost-savings/) A practical hybrid workflow that uses costly LLM APIs for planning and local models (via Ollama + OpenCode) for execution, guarded by deterministic evals. [AI/ML](https://speedscale.com/blog/category/ai/ml/) [Developer tools](https://speedscale.com/blog/category/developer-tools/) [Local Development Environments](https://speedscale.com/blog/category/local-development-environments/) [Developer Productivity](https://speedscale.com/blog/category/developer-productivity/) [by Josh Thornton](https://speedscale.com/blog/author/josh-thornton/) Apr 19, 2026 ### [Replace API Synthetics with Traffic Replay](https://speedscale.com/blog/replace-api-synthetics-with-traffic-replay/) UI synthetics only tell you something is broken. Traffic replay per microservice isolates failures before any human walks up. Zero scripts required. [API Testing](https://speedscale.com/blog/category/api-testing/) [Observability](https://speedscale.com/blog/category/observability/) [Developer Productivity](https://speedscale.com/blog/category/developer-productivity/) [Traffic Replay](https://speedscale.com/blog/category/traffic-replay/) [by Matt LeRay](https://speedscale.com/blog/author/matt-leray/) [![The 4 Golden Signals of Monitoring Explained](https://speedscale.com/_astro/speedscale_screen.CNJoaUxb_7bk6M.webp)](https://speedscale.com/blog/golden-signals/) Mar 27, 2026 ### [The 4 Golden Signals of Monitoring Explained](https://speedscale.com/blog/golden-signals/) Learn the 4 golden signals — latency, traffic, errors, and saturation — and how to use them for monitoring, alerting, and pre-release testing. [Observability](https://speedscale.com/blog/category/observability/) [Developer Productivity](https://speedscale.com/blog/category/developer-productivity/) [by Kush Mansingh](https://speedscale.com/blog/author/kush-mansingh/) [![Oracle JDK to OpenJDK: A Guide to Reliable Migration Testing](https://speedscale.com/_astro/featured-image.BDtSQPWX_Z1Og2px.webp)](https://speedscale.com/blog/how-to-migrate-oracle-java-to-openjdk-with-traffic-replay/) Feb 15, 2026 ### [Oracle JDK to OpenJDK: A Guide to Reliable Migration Testing](https://speedscale.com/blog/how-to-migrate-oracle-java-to-openjdk-with-traffic-replay/) Record production traffic on Oracle JDK, replay it on OpenJDK, and catch every regression before users do. A step-by-step Speedscale guide. [API Testing](https://speedscale.com/blog/category/api-testing/) [Developer Productivity](https://speedscale.com/blog/category/developer-productivity/) [Traffic Replay](https://speedscale.com/blog/category/traffic-replay/) [by Matt LeRay](https://speedscale.com/blog/author/matt-leray/) [![6 Golang Testing Frameworks for Every Type of Test](https://speedscale.com/_astro/featured-image.BjX_DiWP_Z1qowOs.webp)](https://speedscale.com/blog/golang-testing-frameworks-for-every-type-of-test/) Feb 7, 2026 ### [6 Golang Testing Frameworks for Every Type of Test](https://speedscale.com/blog/golang-testing-frameworks-for-every-type-of-test/) What do good tests look like, and do you even need a Golang testing framework? It’s a loaded question with an open answer. [Developer Productivity](https://speedscale.com/blog/category/developer-productivity/) [Golang](https://speedscale.com/blog/category/golang/) [Load Testing](https://speedscale.com/blog/category/load-testing/) [by Nate Lee](https://speedscale.com/blog/author/nate-lee/) ## Try Speedscale free Choose the desktop proxymock or the hosted cloud trial to get started. [Free Desktop Tool](https://docs.speedscale.com/proxymock/getting-started/installation/) [Free Cloud Trial](https://app.speedscale.com/signup)