Notes d'Ingénierie & Travail Open-Source

Jun 17, 2026

Two Hacker News front-page threads this week — one at 1,245 points — are asking the same thing: can a local model finally replace Claude or GPT for daily coding? The honest 2026 answer is "for ~80% of your sessions, yes." Here is the builder read: which local coding models actually crossed the SWE-bench line, how to set one up with Ollama in ten minutes, exactly how much VRAM you need, and the hybrid routing pattern that keeps the hard 20% on the cloud.

Jun 16, 2026

Week 25 of 2026 in AI dev tools: the US government forces Anthropic to suspend Claude Fable 5 and Mythos 5 three days after launch, Moonshot ships Kimi K2.7-Code open weights, Google open-sources the text-diffusion model DiffusionGemma, the Claude Agent SDK flips to metered billing on June 15, OpenCode crosses 160K GitHub stars, and agentic payments via x402 + AP2 quietly become real.

Jun 15, 2026

A 1M-token context window is not memory — it is RAM that gets wiped when the session ends. On the LoCoMo benchmark a two-layer memory setup hit 91.6% accuracy at ~6,956 tokens vs 72.9% at ~26,000 tokens for full context. Here is the builder read: why context windows behave like RAM, the two-layer architecture every production agent needs, a minimal pgvector memory layer in code, and when a bigger window is still the right call.

Jun 14, 2026

Moonshot AI dropped Kimi K2.7-Code on June 12, 2026 — a 1T-parameter open-weight coding model that costs $0.95/$4.00 per million tokens, roughly 5-7x cheaper than Claude Opus 4.8 and GPT-5.5. Here is the developer read: the real benchmark numbers (and why they are all first-party), a verified cost-per-task comparison the hype guides skip, how to run it via API or locally, and when you should still reach for Claude or GPT.

Jun 13, 2026

x402 crossed 161M cumulative payments and got picked up by AWS Bedrock AgentCore in May 2026, while Google’s AP2 defines the trust layer above it. Here is the developer read: how x402 and AP2 actually work, working code to monetize an MCP server or API per request, the per-request settlement trap, and when to skip crypto rails entirely.

Jun 12, 2026

OpenCode just became the most-starred AI coding agent on GitHub — 172,198 stars under MIT, with v1.17.4 shipping June 12, 2026. Here is the developer read: how the free, model-agnostic OpenCode compares to Claude Code and Cursor, the Terminal-Bench numbers, the BYOK cost math, and when each one is the right call.

Jun 11, 2026

Google open-sourced DiffusionGemma on June 10, 2026 — a 26B MoE that writes a 256-token block in parallel instead of one token at a time, hitting 700+ tokens/sec on an RTX 5090 and up to 4x faster than Gemma 4. The catch: quality sits below standard Gemma 4. Here is the developer read — how text diffusion works, how to run it locally, the speed-vs-quality decision, and when to skip it.

Jun 11, 2026

A build-focused guide to self-hosting Google's DiffusionGemma: the exact vLLM serve command, what each diffusion flag does, how to call it like an OpenAI endpoint, and how to tune the speed-vs-quality trade-off on an RTX 5090 or H100.

Jun 10, 2026

Anthropic shipped Claude Fable 5 on June 9, 2026 — a Mythos-class model at $10/$50 per million tokens, double the Opus 4.8 rate. Here is the developer read: the claude-fable-5 API, the Opus-4.8 safeguard fallback you must design around, the new 30-day retention rule, Fable vs Mythos, and when to wait.

Jun 9, 2026

Week 24 of 2026 in AI dev tools: OpenAI's Codex graduates from coding agent to app builder with Sites and role plugins, three open-weight models drop in 72 hours (MiniMax M3, Gemma 4 12B, NVIDIA Nemotron 3 Ultra), Anthropic moves the Agent SDK to metered billing on June 15, Microsoft Build hardens agent security, and the Gemini CLI consumer sunset hits June 18.

Jun 8, 2026

Harness engineering is the discipline of building the scaffolding — docs, golden rules, custom linters, and agent-to-agent review loops — that lets AI coding agents ship reliable software at scale. OpenAI coined the term after building a ~1M-line beta product in 5 months with zero hand-written code using Codex. Here is what a harness actually contains, the architecture that makes it work, when it pays off, when to skip it, and how I run a smaller version of it today.

Jun 7, 2026

Open Notebook just hit #1 on GitHub Trending — but is it the best self-hosted NotebookLM alternative? Here's how Open Notebook (MIT), Khoj (AGPL-3.0), and SurfSense (Apache-2.0) actually compare on Docker setup, RAG architecture, integrations, and the open-source license trap that can bite a commercial build.

Jun 7, 2026

NVIDIA and Microsoft unveiled the RTX Spark superchip at Computex 2026 — a 20-core Grace Arm CPU plus a 6,144-core Blackwell RTX GPU and up to 128GB unified memory that runs 120B-parameter LLMs locally with up to 1M tokens of context. Here is the developer-only read: the confirmed specs, RTX Spark vs DGX Spark, how it ties into Satya Nadella’s agentic-AI push at Build 2026, what you can actually build on it this fall, and when to wait.

Jun 6, 2026

Agent memory — not the model — is the 2026 bottleneck. MemPalace just hit 54.1k GitHub stars and shipped v3.4.0 with a 96.6% LongMemEval score and zero API calls. Here's how the four open-source AI agent memory layers (Mem0, Zep, Letta, MemPalace) actually compare on architecture, real benchmarks, and honest licensing — plus a code snippet to add memory in minutes and how I'd wire it into a production agent.

Jun 5, 2026

Anthropic open-sourced defending-code-reference-harness — a Claude-powered pipeline that finds and patches security bugs in your code — and it hit the GitHub Trending front page this week. Here's what actually shipped, how to run /vuln-scan on your own repo, how it compares to the claude-code-security-review Action, managed Claude Security, and Snyk/Semgrep/CodeQL, where it quietly breaks, and how I'd wire it into a production CI without burning your token budget.

Jun 4, 2026

Headroom hit #1 on GitHub Trending on June 4, 2026 with a tool that compresses tool outputs, logs, and RAG chunks before they reach the model — cutting input tokens up to 92%. Here's how LLM context compression actually works, how Headroom stacks up against LLMLingua, prompt caching, and RAG reranking, when it quietly breaks, and how I'd wire it into a production MVP without losing accuracy.

Jun 2, 2026

Six ships from Week 23 of 2026 that change how you build with AI: Claude Opus 4.8 lands, GitHub Copilot moves to token-metered AI Credits on June 1, the MCP next-spec RC locks a stateless protocol core, OpenAI Codex becomes an autonomous Goal-Mode runtime, Windsurf bundles Devin and raises prices, and the open-weight coding race tightens with Kimi K2.6 and GLM-5.1.

Jun 1, 2026

Anthropic shipped dynamic workflows in Claude Code on May 28, 2026 — a JavaScript script Claude writes to orchestrate up to 1,000 subagents on one task, in the background, while your session stays free. Here's what they actually are, how they differ from subagents and skills, the three ways to trigger one, where they earn their (heavy) token cost, when to skip them, and how I wire them into real client builds.

May 31, 2026

OpenRouter raised a $113M Series B on May 28, 2026 (led by CapitalG) — proof the LLM-gateway layer is now core infrastructure. But which one belongs in your AI MVP: OpenRouter's hosted marketplace, LiteLLM's self-hosted proxy, or Portkey's observability gateway? Here's the real cost math in ₹ and $, the minimal config for each, and the decision rule I use when wiring a gateway into a 6-week build.

May 29, 2026

AI coding agents produce roughly 1.7x more issues than human-written code (CodeRabbit, Dec 2025), and AI-generated code drove 35 new CVEs in March 2026 alone. Here are the 9 anti-patterns I catch reviewing vibe-coded MVPs — phantom validation, optimistic auth, IDOR, race conditions, retry storms, God components — with the before/after fix for each and a checklist to catch them before they ship.

May 28, 2026

Anthropic shipped Claude Opus 4.8 on May 28, 2026 — agentic coding jumps 64.3% to 69.2%, it is around 4x less likely to let a code flaw pass unremarked, and pricing is unchanged at $5/$25 per million tokens. Here is the developer-only breakdown: the confirmed benchmark deltas, the code changes to make, where it actually beats 4.7, and the one reason you might wait.

May 27, 2026

Microsoft Copilot Cowork was exfiltrating SharePoint and OneDrive files via a 5-line prompt injection hidden inside an 81-line skill file — and it worked on 5 of 5 trials against Claude Opus 4.7, model-agnostic. Most "build an MCP server" tutorials ship code that has the same hole. This is the secure TypeScript build, end to end, with the defense layer none of the top tutorials include.

May 26, 2026

Six ships from Week 22 of 2026 that change how you build with AI: DeepSeek V4 Pro locks in a 75% price cut, Copilot auto-routes models, Google ships Managed Agents, NuExtract3 opens up structured extraction, Cursor 3 goes multi-agent, and DeepSeek Reasonix lands as an open coding agent.

May 25, 2026

Google is killing Gemini CLI for free, Pro, and Ultra users on June 18, 2026 — 24 days from today. The replacement, Antigravity CLI (agy), is closed-source, Go-based, and ships with weekly quotas instead of daily ones. Here is the 10-minute migration if you stay, the 4 alternatives worth switching to instead (Claude Code, Codex CLI, Aider, OpenCode), and the decision tree I would actually use for an India MVP client this month.

May 24, 2026

DeepSeek made its 75% V4 Pro discount permanent on 2026-05-22 — output tokens now sit at $0.87/M, roughly 34× below GPT-5.5 and 28× below Claude Sonnet 4.6. Here is the line-item math for a real India MVP, the benchmarks the pricing page hides, and the four production failure modes that decide whether the cheaper model actually saves you anything.

May 23, 2026

PostHog wins for engineering-led India MVPs because it self-hosts on AWS Mumbai for DPDP compliance and bundles session replay + feature flags into one tier. Mixpanel wins for PM-heavy teams that want the lowest learning curve. Amplitude wins for funded teams with a dedicated analyst. The real cost gap at 10M events/month is 8×. Here is the math, the data-residency reality, and the exact stack I run on myFinancial.

May 23, 2026

Four of today's top 15 trending GitHub repos are Claude Code plugins. CodeGraph hit 2,434 stars in 24 hours. Karpathy's skills file: 3,372. This isn't noise — it's the moment context engineering became the differentiator. Here's what to install, what to skip, and why every listicle you've read this month is already wrong.

May 22, 2026

A founding engineer in India ships a native iOS MVP in 6–8 weeks for ₹7.5–10.5L fixed — Swift, SwiftUI, TestFlight, both review submissions, all in. A Bangalore agency quotes ₹28–42L for the same scope, lands in 17 weeks, and hands you a codebase mixing UIKit and SwiftUI across screens. Here is the May 2026 rate card, the App Store review traps that bite native iOS specifically, and the decision tree I wish my last three FinTech and consumer-app founders had read.

May 21, 2026

Resend looks the friendliest, SendGrid looks the safest, and AWS SES looks the cheapest. Run a real 10K-email/month India MVP through each and the math, the deliverability to Indian Gmail inboxes, and the DLT-style compliance burden separate them by an order of magnitude. Here is which one survives a 50-user-to-5K-user growth curve, which one bankrupts you at scale, and the exact ₹ numbers I have logged across four client launches.

May 20, 2026

A founding engineer in India ships a Flutter MVP in 5–8 weeks for ₹6.5–9.5L fixed. A Bangalore agency quotes ₹24–38L for the same scope and lands in 16. FlutterFlow saves 3 weeks of UI work and then traps you in a no-code stack you cannot extend. Here is the real cost math for May 2026, which Flutter packages survive production, and the decision tree I wish my last two FinTech clients had read.

May 18, 2026

LangGraph, CrewAI, and AutoGen all promise the same thing — orchestrate three or four LLM calls into something that feels like an agent. Real cost, real latency, and real failure modes split them sharply once you ship. Here is which one survives a 200-user India MVP, which one bankrupts you, and which one I have spent ₹40K of OpenAI credits learning to avoid.

May 18, 2026

A founding engineer in India ships your React Native MVP for ₹6–9L in 6 weeks. The same scope from a Bangalore agency quotes ₹22–35L and lands in 16. A Toptal freelancer is ₹4,500/hr and a 3-week hiring loop. Here is the real cost math for 2026, which model fails on which kind of app, and the decision tree I wish my last three clients had read.

May 17, 2026

A Postgres-backed Next.js MVP shipping in 6 weeks: Drizzle cold-starts in ~40ms on Vercel Mumbai, Prisma at ~280ms (after the engine binary downloads), TypeORM at ~520ms with decorators bloating bundle size. Here is the real ORM math for an India MVP — cold start, type safety, migration story, edge runtime support, and which one to actually pick.

May 16, 2026

A WhatsApp support bot doing 10K conversations a month costs roughly ₹1,250 on Gemini 2.5 Flash, ₹3,800 on GPT-5-mini, and ₹7,200 on Claude Sonnet 4 — before GST, FX margin, and the 2% TDS your CA will flag on foreign invoices. Here is the line-item cost math, the latency truth from a Mumbai-based MVP, and which API actually wins for which India use case.

May 15, 2026

At 500K embeddings for an Indian RAG MVP, Pinecone Standard costs ~₹6,200/month, self-hosted Qdrant runs ~₹1,400/month on Hetzner, and pgvector inside the Postgres you already pay for adds ₹0. Here is the real cost math, recall benchmark on a Hindi+English corpus, and the migration story when you outgrow each.

May 14, 2026

At 100K monthly requests for an Indian MVP, Vercel Pro lands at roughly ₹2,800/month, Railway hovers around ₹1,800/month, and a Hetzner CX22 + Cloudflare combo is ₹420/month. Here is the real cost math, the Mumbai latency truth, and the migration story when one of them stops fitting your scale.

May 13, 2026

At 10K monthly active users for an Indian MVP, Clerk Pro lands around ₹17,000/month, Supabase Auth is included in the same ₹2,100 Pro plan, and Better-Auth on your own Postgres costs ₹0 plus a weekend of engineering. Here is the real cost math, lock-in tradeoff, and the migration story when you outgrow the hosted option.

May 12, 2026

Firebase tightened Spark-tier limits in Q1 2026 and Supabase opened the Mumbai ap-south-1 region in late 2025. At 10K MAU for an Indian MVP, Supabase Pro at $25/month now beats Firebase Blaze by 2-4x — here is the real cost math, RLS migration story, and when Firebase still wins.

May 11, 2026

Self-hosted n8n costs ₹600/month on a $7 Hetzner VPS for 50K operations; Zapier Professional charges $73/month (~₹6,100) for the same volume. Here is the real Docker setup, ops cost, and break-even math from my multi-platform social automation rig.

May 10, 2026

Razorpay charges 2% on cards and 0% on UPI for Indian MVPs; Stripe charges 4.3% plus GST plus cross-border 3% on the same volume. Here is the actual rupee math from MyFinancial production.

May 9, 2026

Claude Code is the strongest agentic coding CLI of 2026. But $20–200/month buys assistance, not a finished product. This is the line between Claude Code as a developer multiplier and Claude Code as a developer replacement, with the cost math that actually matters when you ship to real users.

May 8, 2026

v0 ships a clickable Next.js + shadcn prototype in 20 minutes for $20 a month. Then on day 30 you need auth, a real database, RLS, Stripe webhooks that survive retries, and a deploy that does not break preview. Here is exactly when v0 is the right call, when a real engineer is, and the cost crossover most founders only see after the prototype is already in customer hands.

May 6, 2026

Replit Agent v3 ships full-stack apps from a browser, runs its own tests, and deploys in one click. So why are founders still ending up with $400 monthly bills, broken auth, and rebuilds at month three? Honest pricing math, real failure modes, and when Replit Agent actually beats hiring a developer in 2026.

May 5, 2026

Devin AI dropped from $500/mo to $20/mo and now scores 51.5% on SWE-bench. Should you fire your developer and let Cognition's autonomous agent ship your MVP? The honest math, real failure modes, and when Devin actually saves money in 2026.

May 4, 2026

Cursor Pro is $20/month, Pro+ is $60, Ultra is $200. One Agent task burns 5–10 premium requests, and a single multi-step refactor on a real codebase eats your monthly credit pool by week two. Here is exactly when Cursor is the right call, when a developer is, and the cost crossover most founders only see after they have shipped a security bug to prod.

May 3, 2026

Bolt.new ships a working prototype in 30 minutes for $25/month. Then complexity arrives — a 31% success rate on real SaaS apps, 5–8 million tokens burned on one Supabase auth bug, and a $5K–$40K hardening bill. Here is exactly when Bolt is the right call, when a developer is, and the cost crossover most founders find too late.

May 2, 2026

AI engineers in the US cost $180K-$280K all-in. India full-time: $45K-$95K. A 6-week senior contract with a builder who has shipped RAG, MCP, and on-device AI in production: $15K-$25K flat. Here is the honest breakdown.

May 1, 2026

Technical co-founders in India cost 25-50% equity and 6-12 months to find. Here are the 2026 numbers, the 4-year dilution math, and the contrarian case that most pre-seed founders should hire a senior contractor first and a co-founder never.

Apr 29, 2026

Carta says 1.5% for hire #1, dropping to 0.33% by hire #5. Pave median is 1%. AI talent pressure pushed the floor up since March 2026. Honest 2026 numbers — plus the $0-equity alternative most pre-seed founders should default to.

Apr 27, 2026

Retool wins for the first 18 months. Custom wins after $20K in seat licenses or when the workflow stops fitting tables and forms. Honest 2026 numbers from a senior engineer who builds both.

Apr 26, 2026

Supabase row-level security is opt-in, silent when wrong, and tested with a superuser token that bypasses everything. In January 2025, 170+ Lovable apps leaked their production databases because nobody enabled RLS. Here are the 5 RLS bugs every vibe-coded app ships, and the audit pattern a senior engineer runs to catch them before user 500.

Apr 25, 2026

Most "6-week MVP" promises are 12-week projects with marketing copy. This is what a real 6-week sprint looks like — week one through week six, what gets built, what gets cut, and what production-ready means at day 42.

Apr 25, 2026

Every "should I use X or Y" debate costs you a week of the sprint. Here is the boring, opinionated, time-tested stack that ships a production MVP in 6 weeks — Next.js, Postgres, Vercel, Stripe, and a handful of opinionated picks.

Apr 25, 2026

A $15K-$30K fixed-price MVP and a $50K-$100K agency quote ship the same thing 80% of the time. The difference is who absorbs the markup. Here is the line-item breakdown — what is in scope, what is overhead, and where the agency margin actually comes from.

Apr 25, 2026

Most "3-month MVP" agency builds take 5-6 months. Most "6-week sprints" take 6 weeks. The difference is not engineer talent — it is the contract structure and the scope discipline. Honest comparison from someone who has seen both fail and succeed.

Apr 25, 2026

Marketplaces like Toptal, Arc, and Uplers add 30-50% markup, 2-4 weeks of recruiter delay, and zero portfolio transparency. Here is how going direct compares — pricing, speed, quality, and what each model actually optimizes for.

Apr 25, 2026

Lovable, Bolt, and v0 ship 70% of an MVP in a weekend. The remaining 30% — auth edge cases, RLS, payment webhooks, performance, schema migrations — is where every vibe-coded app breaks. Here are the 5 production bugs that always need a real engineer to fix, and what the rescue work actually costs.

Apr 24, 2026

Claude Mythos 5, GPT-5.4 Thinking, Gemini 3.1 Ultra, DeepSeek V4, Snap cutting 16% headcount — April 2026 reshaped the frontier. Most roundups list the news. This post tells founders, freelance devs, and founding engineers what to actually build, drop, or route next.

Apr 23, 2026

Fractional CTOs advise. Founding engineers ship. If you have an idea and no product, you need someone writing code — not slide decks. Here is the honest trade-off, with real costs, real timelines, and the signal that tells you which one to hire.

Apr 23, 2026

Every "best Lovable alternative" list recommends Bolt, Replit, v0, Emergent. The honest alternative for a founder whose Lovable app is breaking in production is a senior developer on a 2–4 week rescue contract. Here is why, what it costs, and what to look for.

Apr 22, 2026

Lovable ships your first prototype in a weekend. A founding engineer costs $180K + equity. Here is the honest trade-off, where Lovable breaks, and the in-between option nobody talks about.

Apr 22, 2026

The real 2026 breakdown of MVP cost in India vs the US — why the agency-vs-Silicon-Valley binary is a trap, and how independent senior engineers with AI tools now win on both axes.

Apr 22, 2026

Vibe coding ships prototypes in 2.4 days. Then the 500-user wall hits — auth bugs, payment edges, DB drift. The honest handoff playbook from AI tool to human engineer.

Apr 16, 2026

Architecture deep-dive into SynFlow — a full-stack intelligence platform that matches deals to profiles using rule-based scoring and AI-powered profile extraction from LinkedIn text.

Apr 16, 2026

Google just shipped an offline AI dictation app. Android 16 runs notification summaries on-device. The "cloud-first" mentality for AI apps is dying — here's how I built a production Android app with zero network permissions using Gemma 4, LiteRT, and regex fallback.

Apr 16, 2026

1 in 5 Indian families have been hit by UPI fraud. 51% never report it. Cloud-based scam checkers need internet — exactly what victims in Tier 2/3 India don't have. Here's why I built ScamRakshak with zero network permissions.

Apr 15, 2026

How I built FinBaby — an offline Android app that reads bank SMS messages, auto-categorizes transactions, and provides 50/30/20 budgeting for Indian middle-class families.

Apr 14, 2026

How I architected RetailOS — an India-first multi-tenant retail platform with billing, inventory, GST invoicing, khata ledger, and offline sync in a 12-module Maven monorepo.

Apr 14, 2026

The SaaS market hits $465B in 2026 and 70% of vendors use multi-tenancy. I built RetailOS — a 12-module Spring Boot monorepo with billing, inventory, GST invoicing, khata ledger, and offline sync — as a solo engineer. Here's every architecture decision.

Apr 13, 2026

Architecture decisions behind TripHive — a collaborative trip planner that works without internet using WatermelonDB, PowerSync, and MapLibre with downloadable offline tiles.

Apr 12, 2026

How I built ScamRakshak — a fully offline Android app that detects scams using a 3-tier AI inference engine with Gemma 4 on-device LLM, LiteRT classification, and regex fallback. Zero internet, zero data collection.

Apr 11, 2026

Architecture deep-dive into PaisaGuard — a privacy-first Android app for middle-class families with expense tracking, grocery budget mode, bill calendar, debt snowball, and 4 more modules. Zero backend.

Apr 5, 2026

How I architected a 5-language devotional app with bundled JSON content, offline-first storage, and expo-av audio streaming — shipping to Play Store at ~15MB.

Apr 5, 2026

A practical guide to building a streaming audio player in React Native with expo-av — background playback, progress tracking, and global player state with zero backend cost.

Apr 5, 2026

The full story of building and shipping a React Native app to Google Play — from problem discovery to architecture decisions to the actual Play Store submission process.

Apr 5, 2026

Honest cost breakdown for building Android and iOS apps in India — from a freelance developer who has shipped apps to Play Store. No agency markup, no inflated estimates.

Apr 5, 2026

A developer's honest guide to building AI chatbots — WhatsApp bots, customer support agents, and LLM-powered assistants. What works, what doesn't, and what it actually costs.

Apr 5, 2026

When should you hire a freelancer? When does an agency make sense? A working developer breaks down the real trade-offs — cost, quality, communication, and delivery.

Apr 5, 2026

An honest comparison of Spring Boot and Node.js for startup backends — performance, hiring, ecosystem, and when each one actually makes sense.

Apr 5, 2026

A practical guide to building your SaaS MVP — tech stack choices, cost breakdown, timeline, and the mistakes that kill most first-time founders.

Apr 5, 2026

A practical comparison of React Native and Flutter in 2026 — performance, ecosystem, hiring, and which one I recommend based on your specific situation.

Apr 5, 2026

A practical guide to integrating WhatsApp Business API for Indian startups — providers, costs, message templates, and building automated bots that actually convert.

Apr 5, 2026

A practical comparison of PostgreSQL and MongoDB for startups — when to use each, real performance numbers, and why most startups should just pick Postgres.

Apr 5, 2026

A practical guide to adding AI features to your existing application — where to start, what to avoid, and how to get real ROI without a complete rewrite.

Apr 5, 2026

The 10 questions you should ask before hiring a freelance developer — how to evaluate technical skills, communication, and reliability without being technical yourself.

Apr 5, 2026

The real architecture and costs behind building an on-demand app like Uber or Zomato — what you actually need for an MVP vs what agencies will try to sell you.

Apr 5, 2026

Most MVPs are overbuilt and overpriced. Here is how to scope, build, and launch a real product for under $10K — with examples from projects I have shipped.

Apr 5, 2026

Why your startup should start with a monolith, when microservices actually make sense, and how to avoid the architecture astronaut trap.

Apr 2, 2026

I built a financial advisor AI with AWS Bedrock (Nova Lite) after starting with OpenAI. Here's a real cost and latency comparison from production, not a marketing page.

Jan 28, 2026

How pgvector embeddings improve LLM-to-SQL accuracy by providing schema context instead of dumping entire schemas into prompts.

Jan 20, 2026

Implementing the Model Context Protocol for AI assistant tool integration using Spring Boot and Spring AI.

Jan 15, 2026

Service workers, IndexedDB, and background sync patterns used in MicroItinerary for reliable offline-first travel planning.