God I hate these comments.

"X exists so why would anyone ever build Y". Why not? Competition is good, think about it for a minute and I'm sure you'll figure out how.

Because open source is about collaboration, not wasting time with redundant effort

I disagree, options need to exist. Some full featured, others with a more minimal approach. Different languages, and different flavors. True democracy rarely works and catering to all users more often than not ends up in unmaintainable spaghetti.

People are allowed to create their own X even if thousands of options already exist.

Its a profitable category?

A possible reason: if you're already a RHEL shop, you're happy with your RHEL support contract and you train up all your folks to be RHCE, then Cockpit is the "supported" web admin tool.

Second: webmin also has a patchy security history. I don't know enough about cockpit to say it's any better but it would certainly be enough of an issue to review all of the options.

Just wanna point out that cockpit started nearly a decade ago, so it is not a new entry in this arena either.

Why use Webmin when cPanel has done the job a full year longer?

Is cPanel really a similar technology? It’s more geared towards offering shared hosting than maintaining your own server, right?

Does webmin use no resources when not in use? Couldn't find anything about it on the site