Another one selfhosting contacts, calendar, notes and so on with that non-interoperable protocol.
And for the shake of honesty I need to say that while doable it is true that the situation could be highly improved with a lot of non standard stuff that private apps are implementing outside of the standard compliance
Take a look onto he following image: https://i0.wp.com/www.techjunkie.com/wp-content/uploads/2016/09/tv-size-distance-chart.png?ssl=1
There is always a subjective component in this kind of discussions but this image will help you to see if yiur setup will make sense based in the real perception of the human eye.
Yes you do,
Configuration control is a max in this world and you don’t have the control/ability/power to decide which patches go in or stay out. The vendor, the person who has all the power and knowledge, is the one who decides.
You can loose all your certifications or being held liable for any problem due to that policy.
Not even red hat (certainly not a life critical system) allows a different level of patches/state out of their approved ones
I couldn’t disagree more with you. If you are running something REAL life critical the moment there is a patch you install it and deploy as fast as possible. And if it contains any severe patch it is even the vendor who recalls all the equipment with service bulletin and advisory letters.
With life critical you don’t wait the bug to appear because It maybe too late to avoid deadly consequences.
I use the tchapi docker image for the caldav server (die to the LDAP support for the user Auth) and davx5 for the android integration.
In Desktop thunderbird already have a native integration and with iPhone is also working fine.
No problems so far in almost a year, they work reliable and smooth. The only point I somehow miss is the lack of push notifications from the server to the devices, but it is not a deal breaker from me