Re:How and why I transitioned to Linux, and how you can too
by amaccuish on Sunday January 20, 2019 @03:56PM
(#18955526)
No idea but definitely javascript. My Nextcloud server uses OnlyOffice in the browser so I can edit my documents like with Google Docs or Office 365. It's the same code I'm sure in the browser and on the desktop.
Github Link: https://github.com/ONLYOFFICE
One question though: What desktop UI API are they using? Is it using the native APIs, or using Electron under the hood?