Software architecture review: is your stack the right one?

The most expensive mistakes happen before the first line of code: the wrong database, the wrong structure, the wrong hosting. AI tools pick a popular stack without asking what you're building. An experienced developer asks first — and can save you a rewrite.

Ask for an architecture review Browse database & data model problems

Common problems people bring

SQL or NoSQL? PostgreSQL, MySQL or MongoDB?
An AI-chosen stack (e.g. MERN) that doesn't fit your data
Monolith, microservices or serverless?
Multi-tenant SaaS: one database or many?
Where to host, and what it will cost as you grow

A real example

Someone builds accounting software with an AI assistant, which picks the MERN stack (MongoDB, Express, React, Node.js). It looks fine until the numbers must always add up. Accounting needs strict relationships between accounts, invoices and ledgers, transactions that fully succeed or fully fail, and reliable reports — the strengths of a relational SQL database such as PostgreSQL. An experienced developer spots this in minutes. The AI never mentioned it.

Check the plan before you build

Post your idea, your data, your expected users and the stack you're considering. Developers explain the trade-offs and suggest a structure that fits — while change is still cheap.

Frequently asked questions

Can I ask before writing any code?

Yes — that's the best time. Describe what the software must do, the data it stores and how many users you expect.

Is MongoDB bad?

No. Document databases are great for flexible, self-contained data. They're a poor fit when your data is highly relational and must stay consistent, like accounting or inventory. The right choice depends on the problem.

Can someone review an existing application's architecture?

Yes. Use Validate my software and choose "Application architecture" as a review area for a structured review and report.