Node can load a .NET assembly and call its C# methods without starting another process. C# can do the reverse by embedding Node and loading JavaScript modules. We'll use Node API for .NET for both. Both runtimes run in the same process. The managed assembly…
You've chosen a tote and started packing it. Then another box arrives. Can it go in the remaining space? Do you need to move something? Or was the tote you selected too small for what you now have? A salon has the same problem. Past visits suggest that Alice…
At nine o'clock, the salon has an appointment available next Tuesday. At nine-oh-one, someone holds it while deciding. At nine-oh-six, that hold expires. Nothing about next Tuesday's opening hours changed, but the answer to “can I book this?” changed twice in…
The nail salon has two manicure seats, and one is empty. Can it take a gel appointment at ten? Perhaps. Someone qualified to provide that service must be working, free for the whole treatment, and allowed to serve this client. An empty seat answers only one of…
You have a collection of things and somewhere to put them. Parcels into boxes. Images into a sprite sheet. Jobs onto machines. Meetings into a calendar. The awkward bit is that “there's enough space” doesn't necessarily mean everything will fit. Over the years…
You search for “deploy an application in a container”. The article you need is called “Getting Started with Docker”. A useful search system should connect those ideas, even when the words don't match exactly. NOTE: Updated 5 November 2026. Rebuilt for .NET 10…
What centuries of payments, promises and disputes can teach developers building systems in the AI age. Traditional banking didn't evolve on the assumption that humans were trustworthy. Much of its machinery exists because they aren't. People lie, forget,…
Behavioural inference, controlled decoys, and some rather sneaky 404s. Someone requests a PHP file from your site. It doesn't exist. You return a 404. A little later, someone else requests the same file. Different address, different user agent. Same small…
Updated - 27 October 2026. Original was published Nov 2025 - Corrected bundle options and added current EF Core 9/10 guidance, Aspire integration and clearly marked EF Core 11 preview features. See the errata at the end for corrections to the original version.…
COMING SOON - Working on the nuget package, stay tuned! In Part 4, the recommendation became an intervention. We characterised a proposed change, applied it under an experiment and learned from the observed response. An email could be a candidate in the same…