This part of repository store sample Adaptive Cards taken from samples and used/edited in Visual Studio Code and added to SharePoint page to present it in action
Example adaptive card of agenda item
Example adaptive card of all possible inputs
Example adaptive card of person card
Adaptive card added to SharePoint page
test adaptive card json in online creator https://adaptivecards.io/designer
developed in visual studio code thanks to extension https://marketplace.visualstudio.com/items?itemName=tomlm.vscode-adaptivecards
deployed to SharePoint thanks to React Adaptive Card webpart taken from PnP samples https://github.com/pnp/sp-dev-fx-webparts/tree/master/samples/react-adaptivecards