Business logic first. Deployment shape second.
PURISTA is an open-source TypeScript stack for enterprise software architecture and implementation. It maps business capabilities into validated services, commands, subscriptions, and runtime adapters so teams can start simple and scale toward distributed or Kubernetes deployments when the organization is ready.
Enterprise pressure
Enterprise teams often lock business logic to the first technical shape that ships: HTTP handlers, broker callbacks, cloud-specific SDKs, deployment conventions, and provider decisions. The company later needs another team model, another runtime, another provider, or Kubernetes, and the business logic pays the migration bill.
Product answer
PURISTA starts with business capability definitions. Services group commands, subscriptions, schemas, resources, stores, and configuration. Business logic lives in validated handlers. Bridges, stores, secrets, resources, HTTP exposure, telemetry, and deployment adapters are supplied at runtime.
Operating model
Decision path
PURISTA is an architecture move before it is a framework choice.
For a CTO, the risk is not that a team writes too little code. The risk is that the first delivery shape becomes the permanent architecture: handlers own business decisions, cloud SDKs leak into domain logic, message contracts are implicit, and deployment choices become expensive to change.
PURISTA keeps three decisions separate. First, define the business capability and its contracts. Second, implement the business logic behind those contracts. Third, inject the runtime adapters for bridges, stores, telemetry, config, secrets, providers, and deployment shape.
That gives the organization a clean path: ship as one application when speed matters, split services when ownership changes, and move toward Kubernetes or distributed execution when the operating model justifies it.
Enterprise relation
Capabilities
Business capability definitions through service, command, and subscription builders
Runtime validation schemas that support typed contracts and exported definitions
Provider adapters for event bridges, queues, stores, resources, config, secrets, and telemetry
Deployment paths from a single application to independently deployed services and Kubernetes
Observability and error handling conventions built into the service model
Enterprise use cases
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