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+---
+title: "Unlocking Parachain Potential: Integrating ink! Smart Contracts with Chain Extensions"
+description: This workshop is designed to equip you with the skills to prepare your parachain for ink!-based smart contracts using Chain Extensions. You’ll learn how to configure your chain, create and deploy smart contracts, and test their functionality, all through hands-on exercises.
+duration: 30 minutes
+---
+
+# Unlocking Parachain Potential: Integrating ink! Smart Contracts with Chain Extensions
+
+---
+
+## What do you need?
+
+
+
+- `cargo-contract`
+- `zombienet`
+- Want to have fun!
+
+
+
+---v
+
+### `cargo-contract`
+
+
+
+---v
+
+### `zombienet`
+
+
+
+---
+
+## Chain Extensions
+
+![Venn Diagram between ink! and Parachain Runtime](https://use.ink/img/venn.png)
+
+---v
+
+### It's all about passing messages
+
+```mermaid
+sequenceDiagram
+ actor User
+ participant Contract as Smart Contract
+ participant ChainExtensions as Chain Extensions
+ participant Pallet
+
+ User ->> Contract: contract_method
+
+ Contract ->> ChainExtensions: do_get_attribute "attendance_type"
+ activate ChainExtensions
+ ChainExtensions ->> Pallet: pallet_method
+
+ activate Pallet
+ Pallet ->> ChainExtensions: response
+ deactivate Pallet
+
+ ChainExtensions ->> Contract: response
+ deactivate ChainExtensions
+
+ Contract ->> User: Yaay!
+```
+
+---
+
+## What can YOU do with Chain Extensions?
+
+Depends… who are you?
+
+---v
+
+### As a Runtime Developer
+
+Design an API that allows contract developers to extend what your users can do on your blockchain.
+
+---v
+
+### As a Contract Developer
+
+Interact with the blockchain via a more specialized _"API"_.
+
+---v
+
+### Today we are both
+
+---v
+
+![Uncle Ben](https://media.tenor.com/Hz0fHyUQzfwAAAAe/spider-man-uncle-ben.png)
+
+---
+
+## What we're doing today?
+
+---v
+
+```mermaid
+sequenceDiagram
+ participant Contract as Smart Contract
+ participant ChainExtensions as Chain Extensions
+ participant Pallet as Nfts
+
+ Contract ->> Contract: constructor
+ Contract ->> ChainExtensions: create_nft_collection
+ activate ChainExtensions
+ ChainExtensions ->> Pallet: create
+
+ activate Pallet
+ Pallet ->> ChainExtensions: collection_id
+ deactivate Pallet
+
+ ChainExtensions ->> Contract: collection_id
+ deactivate ChainExtensions
+
+ Contract ->> Contract: store collection_id
+```
+
+---v
+
+```mermaid
+sequenceDiagram
+ actor User
+ participant Contract as Smart Contract
+ participant ChainExtensions as Chain Extensions
+ participant Pallet as Nfts
+
+ User ->> Contract: airdrop_nft
+
+ Contract ->> ChainExtensions: create_item
+ activate ChainExtensions
+ ChainExtensions ->> Pallet: mint
+
+ activate Pallet
+ Pallet ->> ChainExtensions: item_id
+ deactivate Pallet
+
+ ChainExtensions ->> Contract: item_id
+ deactivate ChainExtensions
+
+ Contract ->> User: "Your NFT has been created with ID ${item_id}"
+```
+
+---v
+
+### Let's get to the code
+
+