You know the drill: a new service hits the repo and suddenly you’re editing three different manifests. That duplication is manifest sprawl, and it taxes every deploy, code review, and onboarding session.
One of the most powerful ideas in software is abstraction — hiding implementation details so you can focus on intent. But getting abstraction right is an art. Too low, and you’re buried in boilerplate. Too high, and it becomes magic you can’t control. Aspire helps you express intent — the what — while deferring or adapting the how depending on where your app runs. That distinction matters more than you might think.
Aspire isn’t your frontend. It isn’t your API. It’s not your infrastructure-as-code either. Aspire is your app host. It’s the thing that connects your projects, services, and environment into something coherent and repeatable.
When I talk about modeling in Aspire, I’m talking about describing your application and its environment in a way that a tool can understand — not just a human.
At the heart of Aspire is a resource model. It defines the shape of your application — its services, dependencies, configuration, and how everything connects. But this model doesn’t just describe intent...
In software engineering, we know how to build reusable systems.
Recently Andrej Karpathy posted about the reality of building web apps in 2025. His point was simple: it’s not really about writing code…
.NET Aspire's engineering lead shares his thoughts about the state of tech and how .NET Aspire is positioned to improve developers and maintainers experience
Aspire AI Chat is a full-stack chat sample that combines modern technologies to deliver a ChatGPT-like experience.
This demo shows building a custom resource, using local azure provisioning for service bus and deployment to azure. Additionally, the demo features a sample SMTP server and testing sending email using the MailDev container