[brey]

Yes, I'd be interested. We're evaluating Slack, MS Teams and Mattermost as a successor to Hipchat.

Something to move the needle commercially in favour of on-premise would be helpful in that evaluation.

[rahmen]

Not sure about good on prem products, but if you want to broaden the scope - there are a couple of others including Glip, Flock, and Twist which I have come across in some reviews, including the PC Mag reviews. Have tried out Flock and Twist, specifically- you might want to add these to your consideration set

[nyconyco]

You will be soon able to evaluate Nayego as well: https://nayego.net/ you can subscribe if you want to see the preview.

Nayego is an open source and open standard team chat, that is federated/distributed/decentralised.

[dsr_]

Where's the source? nayego.net doesn't have any links.

[ReverseCold]

I'm pretty sure it's spam.

I found a link, but it only has a README

https://github.com/Nayego/Nayego-client