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It could be said vibe coded competitors to any proprietary software. If everything proprietary was "forced open" by AI what would be the economic effects?

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We've had OSS equivalents of almost everything for decades, you can install a mature Slack clone for $0 since 2015. Yet people don't because of laziness and brands are strong.

If there was a viable open source replacement for discord I would be using it today.

Same goes for slack.

I was referring to Mattermost, the Slack equivalent, which is quite mature and used at scale by some orgs around me.

There’s zulip https://zulip.com/

That's a SaaS / Product.

https://zulip.com/self-hosting/

Similar to the GitLab model.

Example limitations:

> Mobile notifications without limitation for eligible communities

> Mobile notifications for up to 10 users for other organizations

The app is open-source, so I guess it would be OK to deploy it yourself and thus register for your own notifications pipeline.

There’s also Mattermost

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