Authentication
Google OAuth sign-in with SSR-safe session hydration and httpOnly cookies
useSession hookServer-side sessionSign in/out flow
Frontend application platform
The frontend foundation you stop rebuilding
Architecture, UI, data, auth, testing, and production guardrails — already decided and wired together.
Customers
Application surface · features/customers
| Name | Role |
|---|---|
| Alex Morgan | Admin |
| Jordan Lee | User |
| Sam Rivera | User |
| Casey Chen | Admin |
Foundation underneath
Select a concern to see how Atlas wires it through the stack.
- OpenAPI
- Generated types
- API client
- React Query
- Interface
Contract changes surface in the compiler before the UI drifts.
Application
Routes, layouts, and product composition
Feature modules
Domain hooks, queries, mutations, UI
Shared infrastructure
API, auth, flags, telemetry, config
UI system
Primitives, tokens, themes, states
Engineering guardrails
Lint, types, tests, CI, AGENTS.md
The repeated cost
Your product shouldn't begin with six weeks of frontend infrastructure.
Serious teams rebuild the same decisions on every product. Atlas collapses them into one foundation so senior time goes into the product.
- Auth
- API client
- Data fetching
- Forms
- Errors
- Feature flags
- Testing
- CI
- Observability
- Design system
- Accessibility
- Environment config
- Analytics
- Consent
- Agent instructions
- → Atlas
One platform
Build. Ship. Operate. Scale.
Four coherent systems — not a pile of unrelated packages.
Build
The conventions needed to build product features already exist.
Application shell
Layouts, providers, and composition slots
UI system
Primitives, tokens, themes, and states
Typed data
OpenAPI contracts through React Query hooks
Forms
Schemas, client validation, server error mapping
Auth
SSR-safe sessions and protected surfaces
Feature architecture
Domain modules with clear ownership
Typed from contract to interface
The API changes. Your compiler tells you first.
Contract-driven path from backend specification to product interface. Drift fails in CI — not in production.
- 1OpenAPI schema
- 2Generated types
- 3Typed API client
- 4React Query hook
- 5Product interface
Simulate a contract change
components:
schemas:
User:
type: object
required: [email, role, plan]
properties:
email: ...
role: ...
plan: ...Interface stays aligned
pnpm typecheck · 0 errors
EmailRolePlan
Production guardrails
Bad code shouldn't make it to production by accident.
The repository owns the quality gates. Introduce a small defect and watch the system refuse the merge.
Introduce a defect
Pull request checks
Required before merge
All passing
- pass
Typecheck
pnpm typecheck
- pass
Lint
pnpm lint
- pass
Unit tests
pnpm test
- pass
Build
pnpm build
- pass
E2E
pnpm test:e2e
- pass
Security
pnpm audit
- pass
Performance
budget check
Safe releases
Deploy code without betting the product on it.
Flags, audience targeting, and kill switches let you ship dark and turn features on when ready — or off when they aren't.
- Feature flag
- Environment / audience
- Feature guard
- Product interface
- Kill switch
customer-export
Staging · internal audience
Export customers
CSV export is available to the internal audience on staging.
Engineers + agents
Agents move faster when the architecture tells them where to go.
AI-generated code is only as maintainable as the constraints around it. Atlas encodes those constraints.
Example task: Add customer export.
// Prefer feature modules over fat routes
apps/web/src/features/<name>/
apps/web/src/app/ → thin routes only
packages/ui/ → reusable primitives
// Required: loading, empty, error, success
// Prohibited: raw fetch() in UI layersUI system proof
Every state is part of the system.
Success, loading, empty, and error are conventions — not afterthoughts. Density and keyboard-accessible controls ship with the same primitives.
Customers
Feature module surface with lifecycle states.
| Name | Role | Actions | |
|---|---|---|---|
Alex Morgan | alex.morgan@example.com | Admin | |
Jordan Lee | jordan.lee@example.com | User | |
Sam Rivera | sam.rivera@example.com | User | |
Casey Chen | casey.chen@example.com | Admin |
Alex Morgan
Adminalex.morgan@example.com
Jordan Lee
Userjordan.lee@example.com
Sam Rivera
Usersam.rivera@example.com
Casey Chen
Admincasey.chen@example.com
Showing success state, comfortable density
Working proof
Don't take our word for it. Break it yourself.
Each demo is integration evidence: a real problem, a working interaction, and the Atlas machinery underneath.
Data fetching
Generated contracts, query conventions, loading, error, and success states
React QueryOpenAPI typesMode switching
Forms and validation
Typed schemas, accessible validation, and server-error mapping
Zod schemauseZodFormapplyServerFieldErrors
Feature flags
Runtime toggles, kill switches, and guarded feature rendering
useFlag hookFeatureGuardKill switch
Observability
Controlled failures, Sentry capture, and correlation ID boundaries
Sentry integrationStructured loggingCorrelation IDs
Themes and accessibility
Token-driven theming and accessible interaction patterns
Light/dark/systemFocus visibleKeyboard navigation
Consent
Cookie consent banner and analytics gating via @atlas/consent
CookieConsent v3useConsent hookAnalytics opt-in
Proof
Built from production work, not a hypothetical architecture.
Atlas comes from shipping frontend platforms repeatedly — then deciding the same ownership boundaries, contracts, and gates should not be rediscovered on every product.
- What you can inspect
- The live showcase and the forkable platform repo — architecture, demos, and the same gates CI enforces.
- What stays out
- No fabricated metrics, logo walls, or invented case studies. Evidence appears when it is real.
- What comes next
- Migration and onboarding outcomes land here as projects publish them — not before.
From the builder
DMFrontend engineer · Builder of Atlas
Daniel Mark
Atlas is how I build frontend platforms.
The opinions above are the ones I bring into product teams: clear ownership, typed contracts, production gates, and architecture that keeps engineers and agents moving in the same direction.