PXT as a static web page. You can download and run in a local web server.
This is an interesting alternative for single-user offline use of the editor.
Clone the repository.
git clone https://github.com/calliope-mini/pxt-calliope-static
Install a simple web server and run it.
npm install -g http-server
http-server -c-1 pxt-calliope-static/release
Open Editor: http://127.0.0.1:8080.