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Monday, 26 October 2026 Reading Room

Tech

Designing a vending machine: the object-oriented design interview, explained

Designing a vending machine: the object-oriented design interview, explained "Design a vending machine" looks like the easiest prompt in a low-level design interview , and that is exactly why candidates fumble it. There is no clever algorithm to reach for, so the whole round rests on one thing: can you model a machine whose behaviour depends on what just happened to it ? Insert a coin and the…

dev.to ·

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WordPress transactional email: the order to configure SMTP, SPF, DKIM, and DMARC

Your contact form notification and your WooCommerce order email are both sent by wp_mail() . If they land in spam, the mail content is usually not the first thing to fix.

  • Configure sender identity with Return-Path, Reply-To, and From address
  • Establish SMTP relay before adding SPF, DKIM, or DMARC
  • Configure DMARC to monitor and enforce SPF and DKIM results

·dev.to

Help, I'm using Houdini

This is a submission for the Hacktoberfest Open-Source AI Challenge: Week 3 — Slow and Steady If you've ever used Houdini for VFX, Procedural modelling, animation or CG content creation then you're…

  • houdini-wizard tool enhances Houdini's procedural modeling and animation capabilities.
  • Real-time help documentation updates as user selects nodes in node network viewer.
  • AI model provides concise explanations based on parameter values without inventing settings.

·dev.to

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