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Cian-OS Playbooks

Decide what to build.
Then take it safely into production.

The frameworks, criteria and tools we use in our own work — published so any team can use them, whether or not they hire us.

Featured 02 Deciding what to build

Build, Buy, Automate—or Use AI?

AI is one branch of the decision tree, not the default answer. Every need has six possible outcomes — build, buy, automate, use AI, change the process, or not yet — and eight questions that separate them: differentiation, available software, process stability, rate of change, judgment required, data, integrations and risk.

Decision matrix · 5 min · Updated October 3, 2026 Read the Playbook
By problem

Deciding what to build

  1. 01How to Find Business Processes Worth Transforming with AI
  2. 02Build, Buy, Automate—or Use AI?

Defining the product

  1. 03From Process to Product: What to Define Before Writing Code

Getting ready to scale

  1. 04Is Your Software Ready to Scale?

AI-native engineering

  1. 05What Actually Changes in an AI-Native Engineering Team
Practical tools

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