Founder · SebasTN Inc.

Rensley Ramos

I founded SebasTN in New York. I build the apps that get a business paid by card or in digital dollars, and the payment rails under them.

How it started

2021: I started learning Solidity from Patrick Collins's videos on YouTube, then on Cyfrin Updraft. Everything here traces back to that.
2024: I founded SebasTN Inc. in New York in April. In November I deployed my first smart contract, written in Vyper. That is how VyperPilledDev came about. The post on X
Access0x1: Born at ETHGlobal New York, refined at ETHGlobal Lisbon, and refined again during ETHOnline 2026.
Still learning: Halfway through the Uniswap Hook Incubator, building hooks every week.

SebasTN
The parent company: payments for businesses, by card or in digital dollars.
sebastn.com
ClickReserv
Booking and payments for 200+ kinds of business. Any business can sign up, free to start.
clickreserv.com
Colmado
Online ordering for corner shops and restaurants, in English and Spanish.
colmado.click
reserv.click
Free short links and QR codes. Nobody is tracked.
reserv.click
Access0x1
The payment rails: cards and wallets side by side, settled to the business's own wallet on Base, Ethereum, Unichain and Arc.
access0x1.com
RSRV
Launched through a Uniswap Continuous Clearing Auction on Base: one price for everyone. Its pool runs a Uniswap v4 hook we wrote, it is set up for Chainlink CCIP 2.0 across chains, and its contract is public on BaseScan.
app.uniswap.org The contract on BaseScan