install the webservice from https://github.com/giganticode/lm-powered-backend and start the webservice
git clone https://github.com/giganticode/lm-powered
open the project with Visual Studio Code
Run the build task: press Ctrl + Shift + B
Press F5 to run/debug the extension
Customize the behaviour: File -> Preferences -> Settings -> Extensions -> LM-Powered
Enjoy!