We build the software
your team actually uses.
0ARCH builds custom web applications, CRM systems, and internal tools for growing businesses that have outgrown spreadsheets and off-the-shelf software.
We don't sell flexibility. We sell knowing what to skip: the version of your tool that won't be the next thing your team is begging to replace.
Off-the-shelf tools work until they don't. When a business outgrows spreadsheets, generic CRMs, and duct-taped workflows, the cost of staying with them keeps climbing: in lost time, missed work, and decisions delayed because the data is somewhere nobody can find it.
We build the thing that fits. Not the most flexible tool. Not the one that scales to a thousand users you don't have. The version that solves what's actually breaking, owned by you, structured so any future developer can pick it up.
Every project starts with understanding how the team actually works, not a generic discovery questionnaire, but sitting with the people who use the system every day and watching where it breaks.
From there, we build in short cycles. You see working software in week one, not Figma comps. Production access from the start. We work in the open so the team can correct course before it's expensive to.
After launch, we stay on. Most of our clients keep us on retainer because it's faster to iterate with the team that built it than to brief a new agency every quarter.
Web applications, CRM systems, internal tools, and mobile apps when the workflow demands one. We've shipped ERPs for telecom inventory, billing platforms for ISPs, operations systems for marketing agencies, client portals on Cloudflare Workers, and bilingual marketing sites for service businesses.
Different industries, same underlying shape: a real business outgrew its tools, the next ones needed building right.
Based in Miami, building for clients across the country and across the hemisphere. Wastemasters runs out of Doral. CTI runs telecom operations. VenPM runs an ISP in Venezuela where off-the-shelf billing platforms don't handle local payment infrastructure or inflation. HomeSellers runs a real estate brokerage in South Florida.
We don't take projects we can't ship well. The team is small enough that every project gets the people who know how to build it, big enough to ship in parallel when the work demands it.
TypeScript across the stack. React and Next.js on the frontend. Node.js, PostgreSQL, and Prisma on the backend. Cloudflare Workers, Pages, and D1 for deployment. SwiftUI and React Native when the project calls for mobile.
Our background includes distributed systems and machine learning; we've trained language models from scratch on TPU clusters. That depth means we understand what's underneath the framework, not just the framework. When something fails at the infrastructure layer, we can fix it instead of opening a support ticket.
Templates and page builders are fine for sites that don't need to evolve. Real software doesn't fit on a template. Every shortcut taken in the first six months becomes the bottleneck in year two.
We choose proven tools because the goal is software that works for years, not something that needs a rewrite in eighteen months. We write tests so changes don't ship with regressions. We document so the next engineer (yours, ours, or whoever comes next) can read the codebase and ship.
Have something you'd like us to build?
Tell us what you're working on. We'll get back within a day, and if we're not the right fit, we'll tell you so.