AI Tools15 min read
AI Chatbot for Website: Build, Buy, or Both? (2026)
Honest 2026 guide to AI chatbots for websites: 8 platforms compared, build-your-own costs, knowledge-base sync, and hallucination control.
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Notes on shipping
AI in production.
Practical engineering posts from Ergini, a senior software & AI developer in Kosovo. RAG, human-in-the-loop patterns, AI scheduling, MVP cost, and the things vendor blogs skip.
Founders14 min read
Build MVP for Startup: Real Cost in 2026 (Solo Dev)
Real MVP costs in 2026 from a developer who ships them solo. Line items, AI-MVP add-ons, where founders waste money, and a transparent rate card.
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AI Engineering16 min read
RAG Architecture Tutorial: Production System in 2026
Step-by-step RAG architecture tutorial with TypeScript code, retrieval evaluation, and the five failure modes I hit shipping production RAG.
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AI Tools13 min read
AI Scheduling Assistant: 9 Tools Tested in 2026
Honest 2026 review of 9 AI scheduling assistants from a developer who shipped one. Pricing, capabilities, build vs buy, and what the marketing pages omit.
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AI Engineering11 min read
Human in the Loop AI: Patterns That Ship in 2026
Real human-in-the-loop AI patterns from production: approval queues, confidence-based routing, post-hoc audit, and active learning. With code and case studies.
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Build Guides15 min read
Build an AI Voice Agent with Twilio and ElevenLabs (2026)
End-to-end AI voice agent on a real phone number. Twilio + ElevenLabs + GPT, with interruption handling, sub-800ms latency, and warm transfer.
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AI Engineering13 min read
Vector Database Comparison 2026: Pinecone, Qdrant, pgvector
A senior engineer's take on Pinecone vs Qdrant vs Weaviate vs pgvector. Benchmarks, total cost, and the crossover point where self-hosting wins.
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Build Guides12 min read
Build an AI Meeting Notes Tool (Your Own Otter)
Build an AI meeting transcription and summary tool with Whisper, speaker diarization, and structured output. Self-hosted, private, customizable.
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Kosovo & Eastern Europe10 min read
Outsource Software Development to Kosovo: 2026 Guide
Kosovo offers CET-aligned, EU-adjacent, English-speaking senior dev talent at 60% off Western rates. The practical guide to making it work.
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AI Tools11 min read
LangChain vs Vercel AI SDK: Which to Pick in 2026
A senior engineer's take on LangChain vs Vercel AI SDK for TypeScript AI apps. Architecture, bundle size, streaming, and when to use both.
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Hiring12 min read
How to Hire an AI Developer in 2026 (Founder's Guide)
A senior AI dev's hiring playbook for founders. What to look for, how to interview, how to test for real LLM experience vs prompt-fluency theater.
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AI Tools12 min read
n8n vs Zapier vs Make for AI Automation (2026)
Which automation platform wins for AI workflows in 2026? n8n's AI nodes vs Zapier's polish vs Make's visual canvas - broken down by use case.
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Founders11 min read
The SaaS MVP Tech Stack I Use in 2026 (Ship in a Week)
Next.js, Supabase, Vercel, Stripe, Clerk, Resend. The exact MVP stack I have shipped 6+ products on, with the boilerplate decisions made for you.
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Founders12 min read
Cost to Build an AI Chatbot in 2026: Honest Numbers
What it really costs to build an AI chatbot. Tiers from $5K demo to $200K enterprise, with what each tier gets you and where money is wasted.
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Build Guides13 min read
AI Email Automation: Build Your Own Triage Agent (2026)
Build a private AI email agent for Gmail or Outlook that triages, labels, drafts replies, and respects your tone - without sending without approval.
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AI Engineering12 min read
OpenAI API Cost in 2026: Real Numbers from Production
What OpenAI's API actually costs at scale. GPT-5, GPT-5-mini, caching, Batch API, and the cost-control patterns that cut my client bills 60%.
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AI Tools11 min read
pgvector vs Pinecone: When to Switch (and When Not To)
pgvector handles 50M vectors on a normal Postgres box. Pinecone earns its price past 100M. Here is the honest crossover from production benchmarks.
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Build Guides14 min read
Build an AI Customer Support Bot That Doesn't Hallucinate
End-to-end guide to building a production AI support bot with RAG, escalation logic, evals, and Intercom or Zendesk integration. Code included.
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AI Tools11 min read
Claude Code vs Cursor: Daily-Driver Test (2026)
Claude Code is a terminal agent. Cursor is an AI-native IDE. I use both - here is the task-by-task breakdown of when each one earns its keep.
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AI Tools11 min read
Claude vs ChatGPT for Developers (2026): Honest Take
A working dev's comparison of Claude Opus 4.7 vs GPT-5 on coding, context, pricing, and API reliability - based on daily shipped work.
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AI Engineering13 min read
Fine-Tuning vs RAG: A 2026 Decision Framework
When to use RAG, when to fine-tune, when to do both. Real cost data, accuracy numbers, and a decision tree for picking the right approach.
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Build Guides13 min read
Build an AI Lead Generation Tool (Not Another Scraper)
A signal-based AI lead-gen tool - intent detection, enrichment, scoring, and outbound copy - built from scratch with the Vercel AI SDK.
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AI Engineering14 min read
Agentic RAG: Architecture Patterns That Ship in 2026
Agentic RAG turns retrieval into a reasoning loop. Here is how to design, evaluate, and ship one without melting your latency budget or your token bill.
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AI Engineering11 min read
OpenAI Structured Outputs: Strict JSON Schema in 2026
Production guide to OpenAI structured outputs with Zod and Pydantic. Schema design, refusals, streaming, and migrating from JSON mode.
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AI Engineering12 min read
Prompt Injection Defense: 8 Patterns That Work in 2026
Defense-in-depth strategies for prompt injection. Channel separation, output filtering, tool scoping, and the OWASP LLM Top 10 in plain English.
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Build Guides13 min read
AI Document Extraction: From PDF Chaos to Clean JSON
Build an LLM-powered document extraction pipeline for invoices, contracts, and forms. Layout-aware OCR, schema design, validation, human review.
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AI Engineering12 min read
LLM Eval Framework: DeepEval vs Braintrust vs RAGAS
Comparing the LLM eval frameworks engineers actually run in CI. Covers metrics, latency, cost, and which one to pick for RAG, agents, or chat.
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AI Engineering12 min read
LLM Observability: Langfuse vs LangSmith vs Helicone
Side-by-side review of the top LLM observability platforms. Cost, integration time, framework support, and which to pick for agents vs RAG vs chat.
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Tutorials14 min read
Build a Production MCP Server in TypeScript (2026)
MCP server tutorial in TypeScript with tools, resources, OAuth, and remote SSE transport. Wire it into Claude Code, Cursor, and Claude Desktop.
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Build Guides12 min read
Build an AI Resume Screener That HR Will Trust
Build a bias-aware AI resume screener: structured extraction, rubric scoring, explanations, and the audit log that keeps recruiters confident.
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Build Guides10 min read
AI Content Moderation: OpenAI Moderation API in Production
Build content moderation with the free OpenAI Moderation API, then layer custom classifiers and human review for edge cases.
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AI Engineering11 min read
LLM Tool Calling Best Practices for Production Agents
How to design, name, scope, and document tools for reliable LLM tool calling. Parallel calls, error handling, prompt-injection-safe tool design.
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AI Engineering9 min read
AI Workflow vs AI Agent: When to Pick Which
Workflows are predictable and cheap. Agents are flexible and expensive. Here is how to tell which one your problem actually needs, with examples.
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AI Tools11 min read
Supabase vs Firebase for AI Apps in 2026
Supabase ships pgvector and Edge Functions; Firebase ships Genkit and Gemini integration. Here is the practical pick for AI-native apps.
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AI Engineering11 min read
Embedding Models 2026: OpenAI vs Cohere vs Voyage vs BGE
Compares the leading embedding models for RAG. MTEB scores, context length, multilingual support, and price per million tokens.
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Hiring11 min read
Cost to Hire an AI Developer in 2026 (US vs EU vs Balkans)
AI dev rates broken down by region, seniority, and engagement model. Includes the hidden costs most cost guides ignore.
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Kosovo & Eastern Europe11 min read
Hiring Developers in the Balkans: The 2026 Honest Guide
Serbia, Albania, Kosovo, North Macedonia, Bosnia: rates, talent depth, English proficiency, and the practical playbook for hiring well.
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AI Engineering12 min read
AI Agent Design Patterns: Reflection, Planning, Tool Use
The agent patterns that actually ship: reflection, planner-executor, ReAct, multi-agent handoff, and when to use a workflow instead.
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AI Engineering12 min read
AI SaaS Architecture: Patterns from 5 Shipped Products
The architecture decisions every AI SaaS converges on: multi-tenant data, per-user limits, model routing, eval pipelines, and BYO-key support.
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Founders10 min read
RAG Cost Per Query: The Full Breakdown (2026)
Embedding, vector DB, retrieval, generation. The full per-query economics of RAG at three scales - with a downloadable calculator.
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Founders10 min read
AI MVP Checklist: 30 Things to Decide Before You Code
The 30-item checklist I run with every AI MVP client before writing a line of code. Eval strategy, cost guardrails, fallback model, data policy.
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Kosovo & Eastern Europe10 min read
Kosovo's Tech Scene in 2026: A Founder's Field Guide
A ground-level tour of Kosovo's tech ecosystem - hubs, talent pools, salary bands, key companies, and how Western founders should engage.
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Kosovo & Eastern Europe10 min read
Where to Find AI Engineering Talent in Eastern Europe
The Eastern European AI talent map: Poland, Ukraine, Romania, Kosovo, Serbia. Where senior LLM engineers live and what they cost in 2026.
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Build Guides11 min read
AI Sales Automation Beyond Send More Emails (2026)
Build AI sales automation that scores intent, drafts context-aware outreach, and routes to humans - not another mass-email blaster.
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Tutorials10 min read
Stream OpenAI Responses in Next.js 15 (2026 Tutorial)
A clean 2026 tutorial for streaming OpenAI responses in Next.js App Router using Server Actions and the Vercel AI SDK. With tool calls.
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Tutorials10 min read
Vercel AI SDK Tool Calling: A Real-World Tutorial
How to design, ship, and debug tool calls with the Vercel AI SDK. Includes parallel tools, streaming UI, error handling, and Zod validation.
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Build Guides12 min read
Build an Internal AI Knowledge Base Your Team Will Use
Build an internal AI knowledge assistant from Notion, Slack, Drive, and Linear. Permissions-aware, freshness-aware, citation-first.
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Founders9 min read
No-Code vs Custom MVP: A Founder's Decision Guide
When Bubble or Webflow beats a custom build, and when it doesn't. Real cost, speed, and ceiling tradeoffs for early-stage founders.
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Hiring10 min read
Freelance AI Developer vs Agency: Honest Comparison
When a freelance AI developer beats an agency, and when it doesn't. Cost, speed, quality, risk - broken down for founders.
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Build Guides10 min read
Build an AI Code Review Bot with GitHub Actions
A pragmatic guide to building or installing an AI code reviewer for your PRs. CodeRabbit, PR-Agent, or your own GitHub Action - all compared.
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