Vertical mode gantt chart with javascript

I have seen many open-source gantt chart codes/libraries on github, my question is how can I edit it to make it veritcal?

https://github.com/neuronetio/gantt-schedule-timeline-calendar

or

https://github.com/neuronetio/gantt-elastic

how can I edit the code so the timeline is on the on the y-axis and the tasks on the x-axis?

like this:vertical mode gantt chart

Thank you