# Introduction

The subnet template is a P2P coordination layer to deploy clusters of nodes that communicate in a decentralized network. Your job is to build the distributed AI application logic on top of it.

There are three main facets for building a decentralized AI subnet:

## Application

This is the business logic for each peer and can be made to be role-isolated. Peers or roles have specific tasks; this is where that logic lives. For example, a peer can be responsible for generating inference, validating trainer peers, etc.

The application logic is deployed from the [server](/copy-of-subnet-template/server.md).

## Communication

This is how peers communicate with one another. There are two main features for peers to communicate with one another: **using a GossipSub or direct P2P communication** via custom protocols or the API protocol.

## Consensus & Scoring

The consensus mechanism is for scoring peers. Each peer needs to know the scores of each other peer. On each epoch, a validator from the subnet will be randomly elected for an attestation-based consensus mechanism, where this validator submits scores for each peer in the subnet. The other peers can vote on that proposal by attesting to it; not attesting to it counts as a non-vote. The subnet must reach a consensus of >66% to generate emissions.


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