```js
!!mdbook.export 
    title:'Threefold Technology'
    description:'ThreeFold Technology book' 
    name:'tech' 
    summary_url:'https://git.ourworld.tf/tfgrid/info_tfgrid/src/branch/main/books/tech'
    collections:'tech, p2p, def, partners_utilization, vindo, mkondo' 
    production:0 //means we put it in summary
```