Open used to mean expensive. Easy used to mean someone else's permission. Robinhood Chain puts one-tap simplicity on an open Ethereum L2, so the trade is off.
Omnipons scopes your idea, cuts the dead weight, builds it, ships it, and stays with it.
Every consumer crypto product for ten years has had to pick a side of the same trade. The interesting part is that it stopped being necessary and almost nobody noticed.
Ownership you could program, running without anyone's permission. Real settlement on a public chain, not a closed ledger with a company in the middle.
And it stays open. No broker. No buy button someone else can switch off.
Take the fee out of the interface, make it one tap, and ordinary people who had never held an asset can hold one. That is how millions of people made their first trade.
Fast enough and cheap enough that neither of you thinks about the cost.
An Ethereum L2 on Arbitrum, EVM all the way down, with ETH for gas. Built for the consumer side of crypto and still open. Every consumer product for ten years has had to pick a side of that trade.
It doesn't any more. So the excuse is gone, and only the building is left.
Robinhood taught a generation to trade with one tap. Robinhood Chain puts that on an Ethereum L2 anyone can build on, so an app can be as easy as the broker and as open as the chain.
Omnipons is not loyal to a chain and will happily argue one out of your plan. One of the builds below ships with nothing on-chain at all, because that was the cheaper correct answer. But when a product does need open settlement, the chain decides whether it can be a consumer product or only a demo. This one was built for consumers.
Four stages, and the fourth is the one everything else drops. Each one hands you something you can read before the next one starts.
You bring a sentence. It comes back with a plan: what it thinks you meant, what it would cut, and the questions it refuses to answer for you. You edit the plan, not the code.
Contracts where state genuinely has to settle in the open. Everything else off-chain, because putting a leaderboard on a chain is a decision, not a default.
Testnet first, every time, with the test plan run against it. Mainnet is prepared and handed to you. It never holds a key, and there is no mode where it does.
Failed transactions, gas drift, an interface that broke because an RPC moved. It opens the fix as a plan: the same loop it started with.
Four illustrative builds, including one where the right answer was no chain at all. Everything here is labelled EXAMPLE. None of it is customer work.
For a streamer
“A tip jar my viewers can use without making an account.”
One contract, one page, one QR code. Splits to two wallets, shows the last ten tips, and settles before the stream moves on.
7 kept · 4 cut
For a small maker
“Prove a batch of 500 units is really from my workshop.”
A registry the maker signs a batch into, and a scan page a buyer can read in four seconds without a wallet.
9 kept · 6 cut
For a running club
“Track who paid subs this month without me chasing people.”
Cut hard: no token, no governance, no app. A payment link, a public ledger page, one monthly reminder. That was the actual problem.
5 kept · 11 cut
Scoping is free and it produces a written plan you can take anywhere, including away from us. If the plan says you do not need a chain, it will say so.
