I think I have seen @scottalanmiller mention on here that he uses rocket chat for customers and for support. I had some questions comparing it to slack...
1.) Is it FOSS, download and host yourself for free?
2.) Is installing/managing it easy and low maintenance?
3.) Can a single install host multiple tenants
4.) Going with their hosting, can a $50 instance host mulitple tenants?
5.) How does this compare to just the free version of slack?
When the first storm comes through and knocks all your antennas off spectrum you will have help.
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