A DeFi app is two things that have to agree with each other: smart contracts that hold and move value on a blockchain, and the website or app that lets people use them. Most problems come from treating them separately. A contract that is correct but unreadable on screen, or an interface that shows a balance the contract does not agree with, is a product people stop trusting.
What gets built is scoped to what your protocol actually does: what a user can deposit, swap, lend or borrow, what the contracts enforce, and what the screen must show at each step. Contracts are written in Solidity and tested before they are deployed, because a deployed contract is difficult or impossible to change.
What it fixes
- Contracts written in a hurry that behave differently in edge cases than the team assumed
- An interface that shows numbers differently from what the contract will actually do, so users are surprised at confirmation
- No test net run before launch, so the first real users find the bugs
- Wallet connection that fails on mobile or on a second network, and is blamed on the user
- Fees and transaction failures that nobody explained, so a failed transaction looks like lost money
- A launch with no plan for what happens when something goes wrong after deployment
What gets built
A starting point, not a fixed list. The build is scoped to your own process before anything is written.
Contracts and interface built together
One team, one scope. The contract logic and the screens that show it are specified side by side, so they cannot drift apart.
Tested before deployment
Contracts are tested against the cases you list and the ones we add, then run on a test network before anything goes live.
Clear transaction steps
Approvals, confirmations, pending states and failures are shown in plain words, so a user always knows what has happened to their money.
Wallet connection that holds up
Connection through common wallets, on desktop and mobile, with the right network chosen for the user.
Review by the founder
A blockchain engineer reads the contract code before it is handed over. That is a review, not an audit, and we say so.
A plan for after launch
What is monitored, who can pause what, and what the contract can and cannot change once it is live, decided before deployment and not after.
Who this is for
Teams with a clear idea of what their protocol should do and who will use it. It is less useful if the idea is still only a token and a logo. If the contracts will hold other people's money, plan for an independent audit before launch. We build the software and do not give legal advice, so check with a lawyer how the rules apply where your users are.
Questions
Do you audit the contracts?
We write and review them, and a blockchain engineer reads the code before it is handed over. That is not the same as an independent security audit, and we do not present it as one. If the contracts will hold other people's money, we recommend a separate audit before launch.
Can the contract be changed after it is deployed?
Usually not, or only in ways that were built in at the start. That is why the scope decides what can be upgraded, who may do it, and what is fixed for good, before any code is deployed.
Which blockchain will you build on?
We start from where your users already are and what the project needs, and write that down in the scope. We work in Solidity, which covers Ethereum and the chains compatible with it.