Platform
A layered, brick-based architecture.
Quatrain Core stacks reusable bricks from runtime to experience. Each layer is independently usable and replaceable.
L4Experience
No-code studio, AI agent, dashboards.
Studio UIAgent chatAdmin
L3Business
Workflows, state machines, lifecycle.
Flow EngineState MachineAudit
L2Domain
Typed business objects and rules.
SchemaValidationPolicies
L1Platform
Auth, data, storage, notifications.
AuthData BridgeStorageNotify
L0Runtime
Infra-agnostic deploy targets.
KubernetesServerlessBare metal
Principles
Four commitments.
Infrastructure agnostic
Run the same logic on any cloud or on-prem.
Stateful by design
BPM and state machines as first-class primitives.
Dual access
Every brick reachable in code and no-code.
Open source
AGPL-v3-only, monorepo-first.
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