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Namastack

Reliable foundations for event-driven systems.

Open-source infrastructure tools for modern distributed applications.

What is Namastack?

Namastack is an open-source infrastructure ecosystem focused on reliability, consistency, and event-driven architectures.

Reliability

Every component is built to withstand failure and guarantee delivery.

Consistency

Atomic operations ensure your data and events stay in sync.

Production Readiness

Battle-tested under real workloads. No toy projects.

Simplicity

Clean APIs that integrate without friction into existing systems.

Open Source

Transparent, community-driven development. Always.

Featured Project

Namastack Outbox

The advanced outbox engine now integrated with Spring Modulith 2.1 for reliable, order-preserving event externalization in relational database backed Spring applications.

Spring Modulith Support

Use Namastack as the outbox behind Spring Modulith events.

When Spring Modulith applications need advanced outbox behavior, event externalization can be delegated to Namastack Outbox with one starter and one configuration property.

Official starterOutbox mode
Gradle + application.properties
dependencies {
  implementation 'org.springframework.modulith:spring-modulith-starter-namastack'
}

spring.modulith.events.externalization.mode=outbox

Solves the Dual-Write Problem

Eliminates the risk of writing to a database and publishing an event as two separate, non-atomic operations.

Reliable Event Delivery

Guarantees that every database change is followed by a corresponding event, even when services crash or restart.

Spring Modulith 2.1 Integrated

Delegate Spring Modulith event externalization to Namastack Outbox with the official starter and outbox mode.

Built for Microservices

Designed from the ground up for distributed architectures where inter-service communication must be consistent.

Production Ready

Battle-tested in production environments. Handles retries, ordering, and idempotency out of the box.

Spring Boot Native

First-class Spring Boot integration. Auto-configuration, starter dependencies, and familiar programming model.

Why Reliability Matters

In distributed systems, consistency isn't optional — it's the foundation everything else is built on.

01

Distributed Systems Are Complex

Coordinating state across services introduces failure modes that monoliths never face. Every network call is a potential point of failure.

02

The Dual-Write Problem

Writing to a database and publishing a message are two separate operations. If either fails, your system state becomes inconsistent.

03

Event Loss Is Silent

Lost events don't throw exceptions. They silently corrupt downstream state, leading to bugs that are nearly impossible to trace.

04

Data Corruption Compounds

One missed event cascades through dependent services. By the time you notice, recovery requires manual intervention across multiple systems.

Build reliable event-driven systems with confidence.

Get started with Namastack Outbox and eliminate the dual-write problem in your microservices today.

Support the Work

Namastack Outbox started as a passion project — born from a problem I kept running into: reliable event publishing in distributed systems is much harder than it looks.

A lot of time goes into building, maintaining, and documenting this library. If it's saved your team time or given you confidence in your architecture, sponsoring is a meaningful way to give back. Every contribution — no matter the size — directly funds better documentation, new integrations, and long-term stability in the Spring ecosystem.