Hey, I'm Steven a .NET Developer in Switzerland. I am a Microsoft MVP. Also, this blog is open source on GitHub.

Recent Posts

11/24/2025
1 minute read

.NET 9 introduced Guid.CreateVersion7() / Guid.CreateVersion7(DateTimeOffset) methods to create sortable UUIDs / GUIDs based on the time of their creation. This can be particularly useful in databases where you want to maintain a chronological order of records (plus some perf benefits). Currently, there is no native way to configure Entity Framework to use these methods when generating new GUIDs for primary keys. But we can do this on our own.

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11/19/2025
- .NET
- .NET 10
1 minute read

If you are using API Tests with the WebApplicationFactory you might did something like this to have a public Program class:

public partial class Program;

No more!

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11/10/2025
- xUnit
1 minute read

In xUnit v2 ITraceOutputHelper was needed (and injected) to make the console output inside your production code visible inside a test - in v3 it is easier: CaptureConsoleAttribute

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11/3/2025
4 minute read

Many benchmarks that are using ArrayPool, or more specificly ArryPool<T>.Shared, are not actually measuring a "real" scenarion or the benchmark is flawed in some way. Let's examine a bit on what is going on.

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10/27/2025
4 minute read

You need some advice around Random? Sure there is something on LinkedIn for that. Let's have a look.

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10/20/2025
5 minute read

In this - somewhat technical and barely usable - blog post, we will have a look at inlining and structs in C#. And how they can optimize performance in some interesting ways.

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10/6/2025
- .NET
- Performance
3 minute read

This is a very small blog post on why you should use CancellationTokens in your API.

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9/15/2025
3 minute read

Another day, another dollar. LinkedIn has the tips for you! Performance, performance! Let's get right into it.

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9/8/2025
2 minute read

In Entity Framework Core ToDictionaryAsync (and of course) also the the synchronous counter part ToDictionary retrieve the whole object from the database.

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9/1/2025
7 minute read

For a lack of a better title, this blog post shows a database improvement that helped me quite a bit and what to do to make it work.

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Recent Posts

Using sortable UUID / GUIDs in Entity Framework

No more public partial class Program in .NET 10

Capturing Console Output in xUnit.v3

ArrayPool Benchmarks: We have a problem

LinkedIn: "Are you still using new Random() everywhere?"

Inlining and structs in C#

Use CancellationTokens

LinkedIn Benchmarks again

ToDictionaryAsync retrieves the whole object from the database in Entity Framework

Divide and Conquer the Database