Programming and developer resources: tutorials, libraries, tools, and code snippets for web, embedded, and systems developers.
A practical workflow for using JSON, SQL, JWT, regex, Base64, URL, and hash utilities safely and accurately.
“Good design is as little design as possible. Less, but better.”
Learn to decode JWTs safely, inspect claims, validate signatures, and troubleshoot expiration, issuer, audience, and API authentication errors.
A practical guide to bootloader vs firmware vs kernel, with clear examples for MCU, RTOS, and embedded Linux systems.
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A practical GPIO reference covering safe voltage levels, pull states, startup behavior, and the mistakes that commonly break embedded boards.
A practical SPI debugging guide covering clock modes, chip select timing, logic analyzer workflow, and what to track over time.
A reusable I2C troubleshooting checklist for diagnosing address conflicts, pull-up issues, intermittent failures, and bus lockups.
A practical UART debugging hub covering wiring, baud mismatch, terminal setup, and firmware checks for serial console failures.
A practical comparison of Embedded C and MicroPython for microcontroller projects, with guidance by constraints, workflow, and long-term fit.
A reusable developer environment setup checklist for rebuilding laptops, onboarding teammates, and standardizing local development.
A reusable REST API testing checklist for developers and QA teams covering contracts, auth, errors, edge cases, and release-ready validation.
A practical guide to choosing CSS Grid or Flexbox for real UI layouts, with clear scenarios, tradeoffs, and maintainable patterns.
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A reusable flexbox playground guide with common layout patterns, debugging habits, and practical reminders developers actually return to.
A practical, update-friendly guide to choosing TypeScript or JavaScript for new web projects based on team size, complexity, and tooling.
A reusable CORS troubleshooting checklist for finding common causes, fixing headers, and debugging blocked browser requests.
A practical HTTP status code reference for API debugging, monitoring, and tracking recurring failure patterns over time.
A practical guide to SQL formatting rules, team conventions, and dialect gotchas that improve readability and code review.
A practical guide to MD5, SHA-1, and SHA-256 for checksums, integrity checks, and everyday developer workflows.
A practical code review checklist for small teams that want faster pull request reviews without lowering code quality.
A practical guide to choosing between trunk-based development, feature branching, and Git Flow as teams, releases, and tooling evolve.
Expert-written Biology, Chemistry & Physics courses for GCSE, A-Level, AP and IB. Video lessons, practice quizzes, and printable revision notes — all in one place.
A practical reference for designing consistent API error responses that are easier to debug, document, and scale across services.