This repo demonstrate a minimal Teams video app. Install the video app in Teams Host the app directory in a public accessible HTTPS server. You can use github page as the host. Replace the name, appId, and contentUrl in meta/manifest.json. The contentUrl should point to your app directory, like https://lubobill1990.github.io/Teams-VideoApp-example/app/ appId can be any unique GUID zip the meta directory, choose the zip file after clicking Upload a custom app Go to a teams meeting, enable the video, and activate the video app. Develop video app in browser open terminal cd to the directory of README.md run yarn install run yarn start-app run yarn start-container open https://localhost:9000/index.html in your browser change videoFrameHandler function in app/index.js