Charles Nelson

I couldn't imagine using a development tool other than the IntelliJ IDEA Ultimate All Products Pack. A single license allows me to work directly on my server running Ubuntu and/or my workstation running Windows 10 Pro simultaneously. My current project uses HTML, W3CSS, JavaScript, Java, Groovy, Grails, C, GO, Python, Flask, and Rust. For me it's worth every penny of the $150 license fee. And you can try it for free.

What you need to take a look at is Apache OpenMeetings. It already does what you want, it is open source and well documented and only requires that you design the UI and plumbing required to serve you application.