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701 items · Page 11 of 59

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Cloud & DevOpsJuly 8, 202612 min
cert-manager Certificate Stuck Pending? Debug & Fix (2026)
cert-manager Certificate stuck in pending? Debug the Certificate to Challenge resource chain and fix the HTTP-01, DNS-01, and Let's Encrypt rate-limit causes.
LLM & IntegrationJuly 8, 202617 min
Semantic Cache for LLM Calls with Redis Vector Sets (2026)
Build a semantic cache for LLM calls with Redis 8's native VADD/VSIM vector sets in Node.js and TypeScript — cache hits on paraphrases, not just exact text.
NewsJuly 3, 202614 min
Nano Banana 2 Lite & Gemini Omni Flash: Dev Guide (2026)
Google shipped Nano Banana 2 Lite and Gemini Omni Flash to developers on June 30, 2026 — verified pricing, specs, limitations, and API code for both models.
Frontend DevelopmentJuly 2, 202614 min
Build an Accessible React Combobox with React Aria (2026)
Build a fully accessible React combobox with react-aria-components 1.19: correct ARIA wiring, keyboard nav, and a real jest-axe + Testing Library suite.
NewsJuly 2, 202613 min
Claude Fable 5 Returns After Export Ban Lifted (2026)
Claude Fable 5 is back after the US lifted export controls tied to an Amazon-reported jailbreak. Here's the full timeline and what changed for API users.
Backend DevelopmentJuly 2, 202614 min
Postgres MERGE RETURNING: Old and New Values (2026)
Postgres 18 lets MERGE RETURNING return old and new row values in one query. See merge_action(), the xmax alternative, and verified Node.js/TypeScript code.
NewsJuly 1, 202610 min
Claude Sonnet 5: Cheaper Agents, Near-Opus Power (2026)
Claude Sonnet 5 brings near-Opus 4.8 agentic coding at $2/$10 per million tokens through August. See the pricing, the tokenizer catch, and the system card.
Cloud & DevOpsJuly 1, 202612 min
helm upgrade --install: Idempotent Deploys (2026)
helm upgrade --install installs a release if it's missing and upgrades it if it exists — one idempotent command. See the Helm 4 flags, gotchas, and CI pattern.
Backend DevelopmentJuly 1, 202612 min
Correlation IDs in Node.js with AsyncLocalStorage (2026)
Add a correlation ID to every log line in Node.js with built-in AsyncLocalStorage and Express — typed, zero-dependency, plus pino and downstream propagation.
LLM & IntegrationJune 30, 202612 min
Cosine Similarity vs Dot Product for Embeddings (2026)
Cosine similarity vs dot product for embeddings, with runnable TypeScript. Learn when to normalize, why they match for unit vectors, and which to pick.
Tooling & ProductivityJune 30, 202614 min
GitHub Copilot AI Credits: Usage-Based Billing 2026
GitHub Copilot moved to usage-based billing on June 1, 2026. Here's how AI Credits work, what plans include, what stays free, and how to avoid a shock bill.
Backend DevelopmentJune 30, 202617 min
Node.js Circuit Breakers with opossum + TypeScript (2026)
Build a production Node.js circuit breaker in TypeScript with opossum: closed, open, half-open states, fallbacks, errorFilter, timeouts, and verified output.