Opinionated, not restrictive
One proven platform for each job, so every app starts from the same proven stack and still looks and works like itself.
Private beta
Mission control for launching apps.Pick the components each app needs.
Every component is a proven platform (code, data, sign-in, payments, AI), already wired together. Each new app starts on a working stack, so your time goes into building it.
01 / APPROACH
Tenets with a point of view.
Exo’s vision is an over-engineered, deeply integrated platform built from the best open-source development infrastructure on the planet, so you spend less time researching tools and more time building great apps.
Open by preference
We start with open-source tools. Paid services have to earn their place and stay easy to swap out.
Integrated, not locked in
Everything exports: content, media, design tokens, routes and redirects, and a static copy of the site.
Automated, not unsupervised
Agents do the prep work. People approve anything that touches production, billing, domains, or data.
02 / STACK
Modern by default.
Replaceable by design.
Exo vets the infrastructure so you don’t have to: we test the tools for every layer and keep the best ones that work together.
- 01
Open source by default
Most layers run on open-source software you can read, run, and keep. Paid services have to earn their place.
- 02
Next-gen tech
Current, well-supported tools that people and agents can build with quickly.
- 03
Replaceable by design
Every platform sits behind an Exo contract, so swapping one out is a migration, not a rewrite.
#CapabilityExo platformInfrastructureDescription
Control plane
Command panel
Exo
- Hark
- Hermes
HermesPlans, releases, and approvals for every app live in one record. Work runs through Hark, with Hermes as the open-source option. Recommended, not required.
Development framework
One language, one framework
Exo
Next.js
TypeScript
ReactEvery app is written in TypeScript with React, on Next.js for the web. One path, so code, agents, and people can move between apps.
Source control
Code + agent context
Exo
EntireGit-compatible code hosting that keeps each agent session next to the code it wrote. GitHub is an optional mirror.
App state & storage
Real-time data + files
Exo
ConvexThe live backend for every app: data, files, background jobs, and release state, updated in real time. Large originals move to object storage only when they need to.
Identity
Single sign-on
One account for every app: Google, GitHub, or Apple, all through one Exo Key.
Design system
Components, theme + pages
shadcn/ui
Structured Liquidity
ConstructEvery app uses the same open-source components and the Structured Liquidity theme. Landing pages, marketing sites, and comparison pages are built and published in Construct.
Deploy
Web + mobile releases
Railway
ExpoWeb apps and services run on Railway. iOS and Android apps ship to TestFlight, the App Store, and Google Play with Expo.
Communications & support
Email · SMS · voice · CRM
Bird
TwentyEmail, text, and voice from one place, with each app sending from its own domain. Sign-ups and form submissions sync into an open-source CRM.
Payments
Web + in-app payments
Stripe
RevenueCatWeb checkout and app-store subscriptions roll up into one revenue record per app.
Continuous integration
Code checks + evals
Vitest
PlaywrightEvery change is type-checked, tested, and clicked through in a real browser on Staging before anyone approves it.
Observability
Usage + revenue
PostHogVisits, sign-ups, conversion, revenue, and cost to serve for each app, in one place.
Artificial intelligence
Smart model routing
Artificial Analysis
Arch-RouterApps send prompts to Router. It scores how hard each task is, checks model benchmarks, and picks the cheapest model that can do it well through Convex’s AI gateway. Every call is metered per app.
03 / METHOD
Fast to review.
Deliberate to release.
Every change goes to a private Staging site automatically. A person approves the release candidate and the move to production.
01
Plan
Agree on the outcome and who owns it.
One Exo work item + Entire session02
Build
Make and test one change.
Short-lived branch from staging03
Review
See it working on a private Staging site.
Automatic Staging + exo-verify results04
Approve
Lock the exact version customers will get.
Owner-approved Release Candidate05
Release
Ship it and check it live.
Owner-approved ProductionStop researching. Start building.
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