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Articles 129,303Blog Posts 134,099Tech Tutorials 33,413Research Papers 25,155News 18,290
⚡ AI Lessons
Dev.to · Doogal Simpson
1d ago
How Quorum Prevents Split-Brain in Distributed Systems
Quick Answer: A split-brain scenario occurs when a network partition isolates server nodes, leading...
Dev.to · Doogal Simpson
1d ago
Why You Should Never Use a Database as an API
TL;DR: Sharing databases across team boundaries bypasses service interfaces, turning database schemas...
Dev.to · Doogal Simpson
🔧 Backend Engineering
⚡ AI Lesson
1d ago
When to Use an ORM vs SQL and Query Builders
ORMs like Prisma and Hibernate are excellent for simplifying basic CRUD operations. However, for...
Dev.to · Doogal Simpson
⚡ AI Lesson
1d ago
Solving the N+1 Query Problem in Databases and ORMs
TL;DR: The N+1 query problem occurs when an ORM executes one initial database query followed by N...
Dev.to · Doogal Simpson
📐 ML Fundamentals
⚡ AI Lesson
1d ago
How TypeScript Makes Your JavaScript Run Faster
Yes, TypeScript can indirectly speed up your runtime JavaScript. While TS types are stripped at...
Dev.to · Doogal Simpson
1d ago
How the V8 Engine Optimizes JavaScript at Runtime
.The V8 engine speeds up JavaScript by dynamically compiling frequently run bytecode into optimized...
Dev.to · Doogal Simpson
1d ago
Conway's Law: How Team Structure Shapes Architecture
TL;DR: Conway’s Law states that system architectures inevitably mimic the communication structures of...
Dev.to · Doogal Simpson
1d ago
How Conway's Law Shapes Your Software Architecture
Conway's Law states that an application's architecture and user interface will inevitably mimic the...
Dev.to · Doogal Simpson
2d ago
Designing Idempotent APIs and Resilient Pipelines
Networks are inherently unreliable, meaning API requests often fail or retry, resulting in duplicate...
Dev.to · Doogal Simpson
⚡ AI Lesson
3w ago
Handling ISO Currency Codes in Software
Quick Answer: When processing financial transactions over the internet, systems cannot rely on...
Dev.to · Doogal Simpson
🔧 Backend Engineering
⚡ AI Lesson
3w ago
How Git Uses Merkle Trees for Fast Verification
Quick Answer: Git doesn't compare files line-by-line. Instead, it uses a Merkle tree data structure....
Dev.to · Doogal Simpson
⚡ AI Lesson
4w ago
Correct by Design vs Correct by Coincidence
Quick Answer: Code is "correct by coincidence" when it relies on duplicated, fragile details—like...
Dev.to · Doogal Simpson
⚡ AI Lesson
4w ago
How to Represent Money in Software
Quick Answer: Never use floating-point numbers to represent money in software. Because floating-point...
Dev.to · Doogal Simpson
📋 Product Management
⚡ AI Lesson
1mo ago
Agile is a Mindset, Not Endless Sprint Meetings
Quick Answer: I firmly believe true Agile is a mindset focused on shipping small, incremental changes...
Dev.to · Doogal Simpson
⚡ AI Lesson
1mo ago
Good Enough Software: Balancing Quality and Time to Market
Quick Answer: The pursuit of perfect software often leads to delayed launches, burned budgets, and...
Dev.to · Doogal Simpson
1mo ago
Blue-Green Deployments: Instant Rollbacks & Zero Downtime
A blue-green deployment is a release strategy where you maintain two identical production...
Dev.to · Doogal Simpson
☁️ DevOps & Cloud
⚡ AI Lesson
1mo ago
Debugging Microservices with Distributed Tracing
Quick Answer: Distributed tracing solves microservice debugging by attaching a unique Trace ID to...
Dev.to · Doogal Simpson
⚡ AI Lesson
1mo ago
Database Internals: How Data is Stored in Pages
Quick Answer: Databases don't just dump raw rows onto a disk sequentially. Instead, they chunk data...
Dev.to · Doogal Simpson
🤖 AI Agents & Automation
⚡ AI Lesson
1mo ago
Single Responsibility Principle for AI Sub-Agents
Quick Answer: When building multi-agent AI systems, assigning human personas with broad...
Dev.to · Doogal Simpson
⚡ AI Lesson
1mo ago
How Database Reads Work: Pages, Buffer Pools, and Disk
Quick Answer: When you query a database, it rarely reads a single row directly from disk. Instead, it...
Dev.to · Doogal Simpson
📐 ML Fundamentals
⚡ AI Lesson
1mo ago
Spotify's Approximate Nearest Neighbor Search
Quick Answer: Spotify skips exact nearest neighbor calculations because searching hundreds of...
Dev.to · Doogal Simpson
⚡ AI Lesson
3mo ago
Git Internals: Why Your Commits Aren't Actually Diffs
TL;DR: Git is a content-addressable filesystem that stores project states as full snapshots rather...
Dev.to · Doogal Simpson
⚡ AI Lesson
3mo ago
Your JavaScript Array is a Hash Map in Disguise
TL;DR: JavaScript arrays are fundamentally objects where integer keys are treated as strings. To save...
Dev.to · Doogal Simpson
📣 Digital Marketing & Growth
⚡ AI Lesson
3mo ago
Beyond the Haversine Formula: Why I Use Geohashing for Spatial Search
TL;DR: Geohashing encodes 2D coordinates into hierarchical string prefixes, transforming expensive...
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