You can change Business Central by installing apps that add functionality, change behaviour, or give you access to 3rd party online services.
AL-Go for GitHub is a set of GitHub templates and actions, which can be used to setup and maintain DevOps processes for your Business Central AL projects
I used AL-Go for GitHub to create a Business Central per-tenant extension (PTE) with VS Code.
(Notice that you can upload a Per Tenant Extension (PTE) to Microsoft Dynamics Business Central using the Business Central Extension Management page.)
I used the AL-Go-PTE GitHub template repository https://github.com/microsoft/AL-Go-PTE
Prerequisites: A GitHub account, A Windows machine, VS-Code (with AL and PowerShell extensions installed), and Docker installed locally.
Create a new repository using the AL-Go-PTE GitHub template repository
haddley-al-go-pte
I installed Docker Desktop, Windows Subsystem for Linux, Git, GitHub Desktop, and Visual Studio Code on a Windows 10 laptop.
Docker Desktop
Windows Subsystem for Linux
Git
GitHub Desktop
Visual Studio Code
I used GitHub Desktop to clone the haddley-al-go-pte repository
I switched Docker to support Windows container (rather than Linux containers)
I navigated to the .AL-Go folder and ran the localDevEnv.ps1 PowerShell script
I entered a username:admin and password:<password>
Downloading the business central docker image
Creating the docker image
Docker desktop displays the Business Central image
Docker desktop displays the Business Central container
The container is configured
Laptop folders are available inside the container
I needed to navigate to http://bcserver/BC/tenant=default
I re-entered my username:admin and password:<password> (see above)
Business Central running in the local Docker container
Publishing the hello world extension (the settings are copied to launch.json)
The sample extension has been deployed. Navigating to the customers page triggers the message
Installing AL Language Extention
I updated the trigger's Message
I ran AL: Download Symbols (entering my username:admin and password:<password>);
I clicked the Run | Start Debugging menu item