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Practical guides, deep dives, and lessons learned from building production-ready AI systems.

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AI-Engineering Foundation Framework
AI-Engineering Foundation Framework

AI-Engineering Foundation Framework

84% of developers use AI. 66% spend more time debugging it. The fix isn't a better model - it's a better foundation. Welcome to a new category: AI-Engineering Foundation Framework.

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Odoo vs Open Mercato: The Battle Card From Our Real Sales Calls
AI-Engineering Foundation Framework

Odoo vs Open Mercato: The Battle Card From Our Real Sales Calls

Odoo comes up in half of our sales calls - and it should. Here is the actual battle card our partners use, and the real difference in philosophy: a suite you configure vs a foundation that adapts to you, with AI doing the heavy lifting.

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The Third Path: You Don't Have to Buy. You Don't Have to Build From Scratch.
AI-Engineering Foundation Framework

The Third Path: You Don't Have to Buy. You Don't Have to Build From Scratch.

What 50+ customer conversations taught us: buying means the golden chain of lock-in, building from scratch means the weekend-demo trap. The third path - build on an open foundation you own.

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SAP vs Open Mercato: Keep the Core, Stop Paying SAP Prices for Everything Around It
AI-Engineering Foundation Framework

SAP vs Open Mercato: Keep the Core, Stop Paying SAP Prices for Everything Around It

Nobody we talk to wants to rip out SAP - and they should not. The battle card, the real customer pain points, and a four-step path to build new processes beside SAP in weeks, not change requests.

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Claude Code vs Open Mercato: You're Asking the Wrong Question
AI Engineering

Claude Code vs Open Mercato: You're Asking the Wrong Question

The most common competitor we meet in enterprise deals is an internal team with Claude Code. Here's why that's the wrong frame - one is the agent, the other is the foundation it runs on.

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Open Source ERP Alternatives in 2026: An Honest Guide (and Why "AI Features" Are Not Enough)
AI-Engineering Foundation Framework

Open Source ERP Alternatives in 2026: An Honest Guide (and Why "AI Features" Are Not Enough)

Odoo, ERPNext, Dolibarr, Tryton, Axelor and the Java old guard - an honest, implementation-level review of the open source ERP landscape, and why Open Mercato is the only AI-Engineered option.

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Introducing Agent Orchestrator - the new AI agent module in Open Mercato Enterprise
Product Updates

Introducing Agent Orchestrator - the new AI agent module in Open Mercato Enterprise

Everyone has an AI agent demo. Almost nobody has an agent you can safely let into a real business. Agent Orchestrator - a new Open Mercato Enterprise module - changes that: flexible runtimes, native workflow integration, two-layer audit and built-in evals.

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The Productivity-Reliability Paradox: Why Your Team Ships 2x the PRs and Delivers the Same
AI Engineering

The Productivity-Reliability Paradox: Why Your Team Ships 2x the PRs and Delivers the Same

A new paper (arXiv:2605.01160) names the problem every CTO already feels: AI coding tools double individual output while degrading system-level delivery. The fix isn't a better model - it's specification discipline. Here's how it maps onto Spec-Driven Development at Open Mercato.

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Fire-and-Forget AI Engineering: How an Agent Shipped a Production App on Open Mercato
AI Engineering

Fire-and-Forget AI Engineering: How an Agent Shipped a Production App on Open Mercato

Piotr Karwatka's new tutorial shows autonomous AI agents going from idea to a production-ready app - GDPR audit logs, encryption, parallel branches and a coordinator sub-agent - with no babysitting. Here is the full breakdown of the workflow and why it points to where serious AI engineering is heading.

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Let AI write the code. Don't hand it the keys to production.
AI Engineering

Let AI write the code. Don't hand it the keys to production.

A team vibe-coded a warehouse over a weekend. By Tuesday the database had vanished. What actually keeps generated code safe is the frame it works inside, and whether that frame holds when 100+ PRs hit it in 48 hours.

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Your AI access is not property. It is a permission that can be revoked.
AI Engineering

Your AI access is not property. It is a permission that can be revoked.

On June 12, 2026 the US government ordered Anthropic to cut Fable 5 and Mythos 5 - even for foreign-national employees. The lesson for Europe: if you build on someone else's frontier API, you don't own your AI-engineering. Why Open Mercato bets on independent, EU-built, open-source AI-engineering.

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Open Mercato for agencies: the new questions after 27 partners
Architecture

Open Mercato for agencies: the new questions after 27 partners

The basics are answered elsewhere. With 27 partner agencies on board, a different set of questions comes back: where the advantage sits, what homologation buys you in a client conversation, and how you actually become a partner.

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AI-Engineering: How We Built a 750k-Line Framework Entirely With AI Agents
AI Engineering

AI-Engineering: How We Built a 750k-Line Framework Entirely With AI Agents

We did not write a single line of code by hand. 750,000+ lines later, here is the engineering discipline - spec-driven development, the AI harness, fork-free design - that lets three people ship at the pace of twenty.

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AI-Engineering for Large-Scale Commerce: Why Cheap Code Won't Save Your Store
AI Engineering

AI-Engineering for Large-Scale Commerce: Why Cheap Code Won't Save Your Store

The cost of writing code is collapsing toward zero - but for large-scale ecommerce and retail, what still decides success is engineering, not vibe coding. Piotr Karwatka on the difference, a one-day case study, and a practical adoption playbook.

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We Don't Do AI. We Build the Harness Around It.
AI Engineering

We Don't Do AI. We Build the Harness Around It.

You don't have to build AI to win the AI wave - you have to build the harness around it. The business case for AI engineering, told through Open Mercato.

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Why AI rollouts die in the IT department - and 4 plays that actually work
AI Engineering

Why AI rollouts die in the IT department - and 4 plays that actually work

The board catches FOMO, then the energy slams into the IT wall. That pushback is rational, not obstruction. Here are four plays we keep seeing in teams that roll out AI well — starting with a list of everything that could go wrong.

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7 Questions Software Agencies Keep Asking About Open Mercato
Architecture

7 Questions Software Agencies Keep Asking About Open Mercato

We have 25 agency partners. They are not shy. Here are the nine concerns they raise in almost every call - and our honest answers, including the ones that hurt to write. MIT vs. Enterprise: pricing, lock-in, framework complexity, and more.

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"Show Me a 5-Year Customer": 10 IT Department Fears About Open Mercato - Answered Honestly
AI-Engineering Foundation Framework

"Show Me a 5-Year Customer": 10 IT Department Fears About Open Mercato - Answered Honestly

Every enterprise IT team asks us the same 10 questions on the first call. Bus factor, vendor lock-in, AI-generated code, upgrade paths, scale, stability. Here are the honest answers - including the times we tell buyers we're the wrong choice.

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AI Engineering at Enterprise Scale: 8 Lessons From Our First Conversations With Fortune-500 Buyers
AI Engineering

AI Engineering at Enterprise Scale: 8 Lessons From Our First Conversations With Fortune-500 Buyers

What we've learned from sitting across the table from a regulated incumbent and a global manufacturer — and why most enterprise AI programs miss the actual unlock. Eight operational lessons, no PowerPoint.

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How a Python engineer contributed to a Node project. In four steps.
AI Engineering

How a Python engineer contributed to a Node project. In four steps.

I'm a Python/AWS engineer. I picked up an open-source TypeScript project (Open Mercato) and shipped contributions in four steps without learning Node first. Start where you're strong, expand quickly, and learn the basics last. Here's the playbook.

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How Software Houses Can Deliver Fixed-Scope ERP Projects Faster with Open Mercato
Architecture

How Software Houses Can Deliver Fixed-Scope ERP Projects Faster with Open Mercato

Every software house delivering ERP projects spends 4-6 weeks on auth, RBAC, multi-tenancy and audit trails before writing a single business feature. That is the infrastructure tax. Here is how to skip it - and ship a full logistics ERP in six weeks instead of six months.

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Open Mercato vs Twenty: Two Approaches to Open-Source CRM
Architecture

Open Mercato vs Twenty: Two Approaches to Open-Source CRM

Twenty is the best modern open-source CRM. Open Mercato is a different category — a CRM/ERP foundation framework. A concrete, fair comparison and when to pick which.

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AI-Engineering Foundation Framework
AI-Engineering Foundation Framework

AI-Engineering Foundation Framework

84% of developers use AI. 66% spend more time debugging it. The fix isn't a better model - it's a better foundation. Welcome to a new category: AI-Engineering Foundation Framework.

Read more
Django vs Open Mercato: Why a Mature Framework Isn't Always the Right Foundation in 2026
Architecture

Django vs Open Mercato: Why a Mature Framework Isn't Always the Right Foundation in 2026

Django has been the default for serious web apps for almost 20 years. But for ERP/CRM-class systems in the AI-coding era, a TypeScript-first platform with production modules out of the box is a stronger bet. Here's a concrete comparison.

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Retool vs Open Mercato: When Low-Code Stops Paying Off
AI Engineering

Retool vs Open Mercato: When Low-Code Stops Paying Off

Retool is brilliant for the first 6 months. The problem starts at month 18, when the invoice grows faster than the team. A concrete comparison and when to pick which.

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What Large Enterprises Actually Ask About AI-Assisted Engineering
AI Engineering

What Large Enterprises Actually Ask About AI-Assisted Engineering

Notes from the room: what CTOs at telcos, banks, and industrial companies really ask about AI-assisted engineering. Control, architecture, upgrades, teams, timelines. The questions the Twitter demos never cover.

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The Enterprise Stack Nobody Asked For: A Node.js ERP Platform
Architecture

The Enterprise Stack Nobody Asked For: A Node.js ERP Platform

Enterprise software doesn't have to mean Java, SAP, or Oracle. Open Mercato is a full Node.js ERP platform with production-ready modules, field-level encryption, and AI-native architecture.

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Why We Chose Next.js as the Foundation for an Open-Source CRM
Architecture

Why We Chose Next.js as the Foundation for an Open-Source CRM

Most CRMs are built on legacy stacks nobody wants to touch. We built Open Mercato on Next.js, React, and TypeScript. Here's what we learned and why it matters.

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I Got Tired of Building ERP Infrastructure From Scratch. So I Open-Sourced It.
Product Updates

I Got Tired of Building ERP Infrastructure From Scratch. So I Open-Sourced It.

After spending millions on enterprise infrastructure across multiple companies, I built Open Mercato — a TypeScript ERP framework that gives you 80% out of the box.

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Open Mercato: Why I'm Building a TypeScript CRM Framework Instead of Another SaaS
Architecture

Open Mercato: Why I'm Building a TypeScript CRM Framework Instead of Another SaaS

After building and exiting multiple software companies, I decided the CRM/ERP market needs a framework, not another product to configure.

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Open Source ERP in 2026: Where Open Mercato Fits Next to Odoo and ERPNext
Architecture

Open Source ERP in 2026: Where Open Mercato Fits Next to Odoo and ERPNext

The open-source ERP market is worth $2.85 billion and growing 10% a year. Odoo and ERPNext dominate. So why did I build a third option? Because neither solves the problem I keep seeing.

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