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• GitLab's October 2026 Regex Vulnerability Explained: Patch GitLab and RubyBackend · A plain-English guide to the GitLab regex vulnerability CVE-2026-110264 and the Ruby regex engine bugs behind it: how compiling a pattern can run code, who is at risk and how to patch, shown on one running example of a team that self-hosts GitLab.19 min read · Updated 24 Oct 2026
• Google Cloud Storage's October 2026 Outage Explained: Bypassed Capacity ChecksSystem design · A plain-English guide to the Google Cloud Storage outage of October 2026: how a routing change skipped capacity checks, and how to retry writes safely, shown on one running example of a billing app saving daily reports.22 min read · Updated 24 Oct 2026
• LLM Model Deprecation: How to Migrate Without Breaking UsersAI and GenAI · A plain-English guide to LLM model deprecation: finding every model ID, pinning dated versions, golden eval sets, shadow and canary tests and rollback, shown on one running example of a support-ticket triage feature.22 min read · Updated 24 Oct 2026
• Mixture of Experts Explained: Routers, Active Parameters and VRAMAI and GenAI · A plain-English guide to mixture of experts: how a router sends each token to a few expert blocks, why total and active parameters differ, and why every expert still needs GPU memory, shown on one running example of a support assistant sized for rented GPUs.22 min read · Updated 24 Oct 2026
• Postgres MVCC Explained: Row Versions, Dead Tuples and VACUUMSystem design · A plain-English guide to Postgres MVCC: row versions with xmin and xmax, snapshots, dead tuples, VACUUM, autovacuum and wraparound, shown on one running example of a food delivery orders table.21 min read · Updated 24 Oct 2026
• Railway's October 2026 Security Incident Explained: Rotating Leaked SecretsBackend · A plain-English guide to the Railway security incident of October 2026: what the preliminary report says, why encrypted environment variables still leaked and how to rotate secrets, shown on one running example of a small team's app.21 min read · Updated 24 Oct 2026
• React Server Components Explained: What Runs Where and What ShipsFrontend · A plain-English guide to React Server Components: what runs on the server, what ships to the browser, the serialisable props boundary, Server Functions and security, shown on one running example of an online shop product page.22 min read · Updated 24 Oct 2026
• Salary Negotiation for Engineers in India: CTC, Levers and ScriptsInterview prep · A plain-English guide to salary negotiation for engineers in India: what each CTC line really pays, which levers move, and a respectful email script, shown on one running example of two made-up job offers.23 min read · Updated 24 Oct 2026
• Speculative Decoding Explained: Draft, Verify and When It Stops HelpingAI and GenAI · A plain-English guide to speculative decoding: how a small draft model guesses tokens, how the large model checks them without changing its output, and when the speed-up disappears, shown on one running example of a support chat served on one GPU.20 min read · Updated 24 Oct 2026
• Streaming LLM Responses: Render Tokens in a Chat UI Without JankFrontend · A plain-English guide to streaming LLM responses in the browser: fetch streams, safe UTF-8 decoding, SSE parsing, frame batching, scroll, stop and resume, shown on one running example of a Hindi and English homework-help chat.26 min read · Updated 24 Oct 2026
• Text to SQL Explained: Schema Context, Read-Only Roles and SQL ChecksAI and GenAI · A plain-English guide to text to SQL: schema context, read-only database roles, parser checks, timeouts, row limits and result-based tests, shown on one running example of a grocery chain's internal analytics chat box.26 min read · Updated 24 Oct 2026
• AI Agent vs Workflow: When You Actually Need an AgentAI and GenAI · A plain-English guide to the difference between an AI workflow and an AI agent, shown on one shop's support tickets from start to finish, with a simple way to decide which one to build.23 min read · Updated 23 Oct 2026
• Prompt Caching Explained: Faster, Cheaper LLM CallsAI and GenAI · A plain-English guide to prompt caching: what it reuses, why only an exact start matches, how to layer a prompt so the cache hits and how to check it, shown on one running example of a support chat assistant.24 min read · Updated 23 Oct 2026
• AI Solutions Architect: Skills, Roadmap and Study PlanAI and GenAI · A plain-English guide to becoming an AI solutions architect: what the job involves, the six skill areas, a 12-week study plan, how you are tested and a readiness check, shown on one running example of a support assistant.28 min read · Updated 23 Oct 2026
• Architecture Decision Records for AI Systems, With ExamplesAI and GenAI · A plain-English guide to architecture decision records for AI systems: the sections, eval links and superseding, shown on one running example of a marketplace seller assistant.24 min read · Updated 23 Oct 2026
• Core Web Vitals for Single Page Apps: Soft Navigations ExplainedFrontend · A plain-English guide to Core Web Vitals for single page apps: measuring LCP, INP and CLS per route with Chrome's soft navigation entries, shown on one food-ordering app.20 min read · Updated 23 Oct 2026
• Looped Transformers in 2026: More Depth, Same ParametersAI and GenAI · A plain-English guide to looped transformers: how reusing one block of layers adds depth without new parameters, what three 2026 papers found, and the real costs in compute, KV cache and latency, shown on one running example of a coding-tutor app.20 min read · Updated 23 Oct 2026
• MCP Multi Round Trip Requests: How MRTR Replaces Server CallbacksAI and GenAI · A plain-English guide to MCP multi round trip requests in the 2026-07-28 specification: input_required results, retries with answers and sealed requestState, shown on one running refund example.19 min read · Updated 23 Oct 2026
• Out of Order HTML Streaming: Show the Page Shell First, Slow Parts LaterFrontend · A plain-English guide to out-of-order HTML streaming: named placeholders, the template element's for attribute, a Python streaming server, proxy buffering and fallbacks, shown on one running example of a travel booking page.19 min read · Updated 23 Oct 2026
• Prompt Injection Prevention: How to Defend AI AgentsAI and GenAI · A plain-English guide to prompt injection and how to defend an AI agent against it, shown on one email assistant from the first attack to a safer design and a test plan.28 min read · Updated 23 Oct 2026
• RAG Chunking Strategies: How to Split Documents for RetrievalAI and GenAI · A plain-English guide to splitting documents for RAG, from chunk size and overlap to structure-aware, semantic and parent-child chunking, shown on one running example of a farmer helpline.27 min read · Updated 23 Oct 2026
• System Prompt Best Practices: Guidance, Not EnforcementAI and GenAI · A plain-English guide to writing good system prompts, why models can still break them and which rules must move into code, shown on one running example of a savings app's chat helper.21 min read · Updated 23 Oct 2026
• A/B Testing LLM Applications: Metrics, Splits and Safe RolloutAI and GenAI · A plain-English guide to A/B testing LLM applications: offline checks, shadow tests, metrics, user splits, test length and a safe rollout, shown on one running example of two product description prompts.24 min read · Updated 23 Oct 2026
• Choosing an AI Agent Framework: Plain Loop, Graph-Based or Role-BasedAI and GenAI · A plain-English guide to choosing an AI agent framework: a plain loop, LangGraph, CrewAI, Pydantic AI or Microsoft Agent Framework, tested on one running example of a small tax-assistant team.21 min read · Updated 23 Oct 2026