If you are about to create an Azure OpenAI resource, stop. Microsoft's own guidance is that most use cases should use a Foundry resource instead — it speaks every Azure OpenAI API you already use, and adds the rest of the model catalog, agents and tools on top. This guide creates one from scratch and deploys a model.

Creating an AWS organization takes about thirty seconds and two clicks. Deciding which account you click those two buttons from is permanent. This guide covers both — the decision first, then every screen in order.

Creating an AWS account takes about 10 minutes. This is every screen you will see, in order, with exactly what to enter.

Entity Framework Core maps each database table to an entity class and gives you a DbContext to query them. Most of the time you read from a single DbSet, but sooner or later you need data that lives across two tables — exactly what a SQL JOIN gives you. In EF Core, the lambda-based Join() method does the same job, and it translates into real SQL that runs on the database server.

Everything below targets .NET 10 and EF Core 10, the current Long Term Support releases.

appsettings.json is where an ASP.NET Core app keeps its settings — connection strings, API base URLs, feature flags, timeouts. Reading those values comes down to one service, IConfiguration, which ASP.NET Core registers for you. In a console app you build the same thing yourself in a few lines.

This guide covers both, on .NET 10.

Power Automate is strict about data types. If you try to concatenate a number into a message, save it into a text column, or pass it to a connector that expects text, the flow fails with a type mismatch. The fix is the built-in string() expression, which converts a number or integer into its text or string representation.

Seeing Permission denied (publickey) when connecting to GitHub means GitHub could not authenticate your SSH connection with any key your computer offered. The usual causes are an unloaded key, an incorrect remote URL, a key attached to another GitHub account, or an SSH configuration problem.

This guide checks each cause in the fastest order so you can get git clone, git pull, and git push working again.

Learn how to install Docker Engine on Ubuntu Server using Docker's official apt repository. This step-by-step guide covers setting up the Docker repository, installing the engine and CLI, running Docker without sudo, enabling it to start on boot, and verifying everything works with the hello-world container.

You logged into Azure DevOps and noticed the Repos option is completely missing from the left sidebar. You cannot clone, push, or even browse any repository. This is most commonly caused by having Stakeholder access level, but there are other reasons too.

Learn how to generate an SSH key, add it to your GitHub account, and clone a repository using SSH. This step-by-step guide covers macOS, Windows, and Linux with all the commands you need to set up passwordless GitHub authentication.