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Introducing springdoc-openapi-starter-webmvc-redoc: Beautiful API Docs for Spring Boot, Zero Config
A Spring Boot starter that gives you Redoc's three-panel API documentation UI with a single dependency. No configuration, no HTML files, no fuss.
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Payment Gateways: A System Design Perspective
A deep dive into payment gateway architecture — covering system design, sequence diagrams, ISO 8583 messaging, PCI compliance, idempotency, ledger design, and settlement flows.
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SciCalc — I Built a Full Scientific Calculator in C (and It Got Out of Hand)
The story of how a simple 'Hello World'-era C assignment spiraled into a 13-module, 158-test scientific calculator that rivals a TI-36X Pro. A deep dive into every feature, the math behind it, and what I learned along the way.
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Configure Automated Builds on Docker Hub
How to integrate GitHub with Docker Hub to set up automated Docker image builds triggered by code pushes.
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Dockerize Your Spring Boot Application
A step-by-step guide to creating a Docker image for a Spring Boot application using a multi-stage Dockerfile.