Build your first Aspire app
Build your first Aspire app by first choosing the AppHost language you want to work in. The AppHost is the code-first orchestrator for your solution, so this choice lets you stay in a familiar toolchain while deciding whether your walkthrough uses AppHost.cs / apphost.cs or apphost.ts.
C# AppHost Best when you want to stay in the .NET toolchain.
TypeScript AppHost Best when you want to stay in the JavaScript and TypeScript toolchain.
Before you begin
Section titled “Before you begin”Before following either quickstart, make sure you’ve completed the prerequisites and installed the Aspire CLI.
After completing either quickstart, continue with Deploy your first Aspire app.