

61·
3 months ago99.999% is about 5 minutes and 16 seconds of downtime per year.
12 services down perfectly sequentially works out to 76 minutes per year, not 2hours per week.
Not saying there aren’t applications where that can’t be catastrophic, but you’re scale is off for three 9 downtime.
As an alternative, around here, home phones (through voip) are making a comeback for kids.
Secure comms, no log, no photos, teaches a bit of etiquette.
Compatibility between self hosted and commercial systems.