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What Happens Before Your C Program Reaches the CPU?

Most developers know how to write C code. Far fewer know what actually happens after they press Run . A common mental model looks like this: Write Cod…

ccomputerscienceprogrammingtutorial
Dev.to May 30, 2026, 19:14 UTC
EN

How I Built and Monetized a Currency Exchange Rate API with FastAPI, Deployed it on Render, and Published it on RapidAPI.

Introduction: In order to build passive income streams, I decided to publish APIs on RapidAPI. The idea is straightforward: build a useful API once, s…

pythonfastapiwebdevtutorial
Dev.to May 30, 2026, 15:09 UTC
EN

Why ChatGPT Fails as an Interview Tutor (And How I Built a Better One with Claude Code)

ChatGPT Always Says "Great!", But I Remember Nothing — I Built a Real Interview Teacher with Claude Code A Universal Pain Point When you use ChatGPT /…

programmingopensourcetutorial
Dev.to May 30, 2026, 13:16 UTC
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Built an AI Interview Coach Because ChatGPT Just Says 'Great!

ChatGPT Always Says "Great!" But I Remember Nothing — Building a Real Interview Teacher with Claude Code A Universal Pain Point When using ChatGPT / C…

programmingopensourcetutorial
Dev.to May 30, 2026, 13:08 UTC
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Quark's Outlines: Python User-defined Functions

Quark’s Outlines: Python User-Defined Functions Overview, Historical Timeline, Problems & Solutions An Overview of Python User-Defined Functions W…

pythonprogrammingbeginnerstutorial
Dev.to May 30, 2026, 12:33 UTC
EN

Uploading Images to Cloudinary in a MERN Stack Application

Images are an important part of many modern web applications, including social media platforms, e-commerce websites, and photo-sharing applications. W…

javascriptnodereacttutorial
Dev.to May 30, 2026, 10:35 UTC
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FFmpeg Segment Muxer: segment_time, strftime, and reset_timestamps

Originally published at ffmpeg-micro.com The FFmpeg segment muxer splits a video into multiple files based on duration. Three flags cause most of the …

ffmpegvideoclitutorial
Dev.to May 30, 2026, 10:18 UTC
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Google AI Studio Mobile + Gemini Managed Agents: Build and Deploy AI Agents Without Infrastructure in 2026

Google AI Studio Mobile + Gemini Managed Agents: Build and Deploy AI Agents Without Infrastructure in 2026 TL;DR Summary Google AI Studio is now a sta…

googleaiwebdevtutorial
Dev.to May 30, 2026, 09:29 UTC
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Python Day Two : The Start of Real Coding

Python Day Two : Python Output & Print print() is a Python🐍 command used to show something on the screen. Example: print ( " Pure Pearl Foundation…

beginnerscodenewbiepythontutorial
Dev.to May 30, 2026, 08:23 UTC
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From NumPy to JAX: My First "Aha!" Moments with Accelerated AI

Building open-source solutions for my 100 Days of AI Agents challenge meant I needed to start looking at frameworks that scale better than standard Nu…

aimachinelearningpythontutorial
Dev.to May 30, 2026, 07:39 UTC
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I Analyzed 200 Small Business Websites — Here's What's Actually Hurting Their Performance (And How to Fix It)

The 6 Most Damaging Findings (Recap) Signal % of Sites Failing Impact Excessive unused CSS (50%+) 67% +1.4s to First Paint Image payload >1 MB 72% …

webdevperformancetutorial
Dev.to May 30, 2026, 07:39 UTC
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The Death of the React Native Bridge: Moving from JSON to JSI in 2026

What is the Native Bridge? The React Native Bridge is a communication layer that allows the JavaScript thread and the Native threads (iOS/Android) to …

reactnativesubratatutorialai
Dev.to May 30, 2026, 07:37 UTC
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"Reinstalling Won't Fix It": A Cross-App Shared-Auth Deadlock After Switching Phones

After migrating to a new Android phone, a few specific apps stopped launching. Amazon Shopping and Kindle would freeze on a blank white or black scree…

androidadbmobiletutorial
Dev.to May 30, 2026, 07:26 UTC
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Ghostty Is Leaving GitHub, and It Won't Be the Last

When Mitchell Hashimoto, the creator of Vagrant, Terraform, and Ghostty, writes a breakup letter, people listen. And on April 28, 2026, he wrote one t…

programmingdevopswebdevtutorial
Dev.to May 30, 2026, 06:07 UTC
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Threat Detection in Kubernetes with Falco

Finding out there is "suspicious activity" in your infrastructure is enough to make any DevOps engineer's heart rate spike. If you’re running containe…

falcodevsecopstutorialtodayilearned
Dev.to May 30, 2026, 05:22 UTC
EN

SQL Pattern Series #1: The Presence Pattern

Thinking in terms of existence instead of lists SQL Pattern Series #1 of 21 A collection of practical SQL patterns that help developers recognize comm…

beginnersdatabasesqltutorial
Dev.to May 30, 2026, 03:26 UTC
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Idempotency Keys: The API Pattern That Prevents Duplicate Charges (and Worse)

Network requests fail. Timeouts happen. Clients retry. And without idempotency keys, a single payment request can become three charges. Idempotency ke…

apiwebdevtutorialjavascript
Dev.to May 30, 2026, 02:21 UTC
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Environment Variables in Node.js: The Complete Guide (2026)

Environment Variables in Node.js: The Complete Guide (2026) Environment variables are the standard way to configure apps across environments. Here's h…

backendjavascriptnodetutorial
Dev.to May 30, 2026, 00:34 UTC
EN

Dynamic Workflows in Opus 4.8: Build a Self-Verifying PR Reviewer

You stopped being the loop Most people use Opus 4.8 the way they used every model before it: open a chat, type a request, watch the cursor, correct it…

opusaiworkflowstutorial
Dev.to May 29, 2026, 21:23 UTC
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⭐ State.js Basics — Learn CSS‑Driven Reactivity in 10 Minutes

State.js looks simple — just HTML attributes — but it introduces a new mental model for building UI: HTML holds the data. CSS reacts to the data. Stat…

cssjavascripttutorialwebdev
Dev.to May 29, 2026, 20:05 UTC
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Medium API in 2026: Scraping vs Official API vs Zenndra (Honest Comparison)

If you've ever tried to pull data from Medium programmatically, you already know the pain. Medium retired their official API years ago. What's left is…

apiproductivitytutorialjavascript
Dev.to May 29, 2026, 19:24 UTC
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How to Measure Code Coverage in C++ with Visual Studio 2026

About My Code I'm developing a video game in C++ using SDL3 — a cross-platform library that provides access to accelerated video, audio, controllers, …

cppmicrosofttestingtutorial
Dev.to May 29, 2026, 18:27 UTC
EN

💀 Crash #5: The Great OS Migration

💀 Crash #5: The Great OS Migration "New Windows, new me. This time I'll do it right." Famous last words. After the emulator war, I had made a decision…

aibeginnersstorytutorial
Dev.to May 29, 2026, 17:35 UTC
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⚔️ Crash #4: The Emulator War

⚔️ Crash #4: The Emulator War "I just deleted a game emulator. Why is my AI assistant dead?" Months before I fell down the AI rabbit hole, I installed…

aibeginnersstorytutorial
Dev.to May 29, 2026, 17:21 UTC
EN

Using the Claude Code Status Line as a Data Source

Putting The Status Line To Work I used to think the Claude Code status line was just an ornamental decoration that had little practical value. I still…

aiclaudetutorialtooling
Dev.to May 29, 2026, 16:39 UTC
EN

How to Add Memory Security to Your LangChain Agent in 5 Minutes

Why Your Agent's Memory Needs Security If you're building LangChain agents with persistent memory (ConversationBufferMemory, RedisChatMessageHistory, …

langchainpythonsecuritytutorial
Dev.to May 29, 2026, 16:28 UTC
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Rest Template - API for developers- Spring Boot

RestTemplate is a synchronous Spring Framework client used to consume RESTful web services by simplifying HTTP communication. Synchronous Communicatio…

apijavaspringboottutorial
Dev.to May 29, 2026, 12:38 UTC
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Hello, Array: malloc, free and Manual Bookkeeping

Post 1 of the Dynamic Arrays in C series · Full source code The Problem No One Starts With You have five integers. You put them in an array: int numbe…

ccomputerscienceprogrammingtutorial
Dev.to May 29, 2026, 07:37 UTC
EN

Building a Resume Download Gate: Email Collection, Signed Tokens, and an S3 Lesson

I wanted a soft gate on my resume download. Not a paywall. Just an email field — enough friction to filter bots, enough signal to know who's intereste…

pythondjangowebdevtutorial
Dev.to May 29, 2026, 03:32 UTC
EN

TanStack shipped a postmortem for the 42-package npm compromise. Here is what every project should change this week.

TanStack shipped a postmortem for the 42-package npm compromise. Here is what every project should change this week. On May 11, 2026, between 19:20 an…

securityjavascriptwebdevtutorial
Dev.to May 29, 2026, 02:33 UTC

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