In this workshop, Nik Erzetic, a developer at Flare Network, introduces Flare Smart Accounts and Flare Confidential Compute, two key pieces of Flare's infrastructure. Flare Smart Accounts use account abstraction to allow XRPL users to perform actions on the Flare blockchain without holding any Flare tokens, by bridging encoded instructions from XRPL payment transactions to personal account smart contracts on Flare.
The session focuses primarily on Flare Confidential Compute, which leverages Trusted Execution Environments (TEEs) to extend blockchain security to handle private data and computationally heavy tasks. Nik walks through the architecture of TEE extensions on Flare, explaining how developers only need to modify two components — the instruction sender smart contract and the TEE extension code itself. He demos the FC Sign repository as a practical example, covering op types, op commands, and how the TEE securely handles private keys and transaction signing. The workshop concludes with notes on local development tooling for the hackathon and a brief Q&A.
00:00 Introduction
00:25 What Are Flare Smart Accounts
04:02 Account Abstraction and XRPL Integration
06:06 Encoding Custom Instructions
07:00 What Are Trusted Execution Environments (TEEs)
08:18 Flare Confidential Compute Architecture
09:38 Developer Workflow: Smart Contract and TEE Extension
10:36 TEE Proxy and Firewall Security Model
11:06 FC Sign Repository Walkthrough
12:48 Instruction Sender Smart Contract
14:04 Op Types, Op Commands, and Message Encoding
15:52 Go TEE Extension: Handlers and Config
17:32 Local Development Setup for the Hackathon
18:35 AI Skills for Building TEE Extensions
19:07 Q&A
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*ETHGlobal Cannes 2026*
This workshop is specifically for ETHGlobal Cannes 2026, a 3-day hackathon held April 3-5 at the Palace of Festivals and Congresses of Cannes, bringing together the most skilled web3 developers, designers and product builders from all around the globe for a weekend-long adventure to advance the Ethereum ecosystem! Watch the full ETHGlobal Cannes 2026 playlist here: https://www.youtube.com/playlist?list=PLXzKMXK2aHh5YrcvSj6KSTztLMy58d7d4
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