Comparisons anchored on BigBlueButton, the LGPL-3.0 virtual classroom and web conferencing system, covering single-server and load-balanced deployments.
When one BigBlueButton server covers your virtual classrooms and when to put a pool of servers behind the Scalelite load balancer. Covers per-server capacity, the minimum pool size Scalelite recommends, its PostgreSQL, Redis and NFS dependencies, how front ends such as Moodle or Greenlight see the pool, and the skills it takes to run.
Official BigBlueButton hosting from the project's founders against running your own BigBlueButton servers: the premium hosted capabilities, pricing by concurrent sessions, the four hosting regions, and the server sizing, bandwidth and clean-install upgrades that self-hosting brings.
Which to run for teaching: BigBlueButton's virtual classroom design and LMS integration, with Moodle 5.3 enabling it by default and a limited free tier, against Jitsi's lighter meetings, compared on server size, recordings and class sizes.
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