CacheToys is a small .NET 9 sample library and demo showing a reactive, dependency-tracking cache built on top of IMemoryCache. It includes an example program that demonstrates how dependent cache entries are tracked when multiple tasks interact with the cache concurrently.

• Dependency tracking for cache reads
• Reactive invalidation support (pluggable transports, Redis transport is included)
• Simple in-memory demo harness in Program.cs

• .NET 9 SDK installed

1. From the repository root run:

   dotnet build

   or

   dotnet build CacheToys/CacheToys.csproj

1. Run the demo program:

   dotnet run --project CacheToys/CacheToys.csproj

2. The Program.cs file contains a small harness that exercises parallel dependency-tracking behavior.

• The project exposes ReactiveCache which wraps IMemoryCache. In the demo the ReactiveCache is registered with DI:
• Use services.AddMemoryCache() and register ReactiveCache (see Program.cs).
• An optional invalidation transport interface IInvalidationTransport is provided; a Redis-based implementation is included as RedisInvalidationTransport.

• See repository license (if any).