See what a given kind of company typically picks

Tech Stack · Field Guide

What's actually in
a software stack.

A plain-English guide to every part of a modern software product — what each piece is, what it does, and how they fit together — written for non-engineers: product managers, deal teams, and anyone who needs to follow the conversation. Start with the overview below, search any term, or tap a card to open its full breakdown. The company-type lenses and the investment / deal-team notes show how these choices play out in practice.

How common (install base) Direction ▲ rising ■ steady ▼ fading Lock-in low / med / high (how hard to leave)

Opinionated defaults

If you remember nothing else — the highest-value mental model for what each cluster actually buys you.

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