Evmos Balancer

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Inspiration

Balancer is an automated, on-chain portfolio manager and liquidity provider. Balancer is based on an N-dimensional invariant surface which is a generalization of the constant product formula described by Vitalik Buterin. Our ultimate goal is to enable builders in EVMos community to jump start their own DeFi products for Evmos, using secure, audited and well-tested Balancer's codebase.

What it does

This project introduces battle-proven Balancer Bronze realease to the Evmos ecosystem. In a nutshell, it is off-the-shelf stack for rapid prototyping of DeFi protocols on EVMos, giving developers access to state-of-the-art core functionality of Balancer, without non-essential feautures such as advanced gas optimizations.

How we built it

We've built a monorepo for the Balancer's front-end dapp and all its packages. This allows EVMos builders' community to start working with Balancer's front-end and Smart Order Routing source code, with instant rebuild/reload tooling enabled. Orignial Balancer dapp imports most of the packages as node modules, making it hard to build on top of the Balacner's code base.
We've gathered all the necessary contracts in one a single repo (mutlicall, router, pool registry contracts). Previously, they were scattered around several different GitHub repos with no clear links between them, i.e. it was unclear what contracts are required, what versions were compatible, etc. Now everything is in complete synch and is deployment-ready.
We've added Truffle deployment and configuration scripts for a turn-key launch of the Balancer on Evmos, including detailed tutorial on launching a single node local testnet. Previsously, there were only unit tests available as a source of information on how to deploy Balancer.
We've added an ERC20 Wrapped Photon contract to support trading Photons, a native EVMos token.
We've introduced a spaceship to the frontpage to motivate you to build the next-big-DeFi-protocol for Evmos ☺️

Challenges we ran into

We've revamped balance retrieval mechanism that relied on a custom multicall with no source code available. Balancer uses a custom multicall contract, which is not in Balancer's Github repo. This is a major show stopper for deployment of Balancer to Evmos. Our fork does not require this contract anymore.

Accomplishments that we're proud of

We've created an easy to follow guide for Balancer deployment on Evmos that can be useful for any developer who wants to kick start their DeFi project in Evmos ecosystem.