Instead of a WhatsApp group or whatever, my two oldest friends and me have a private non-federated Mastodon instance running on my laptop for some time now
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@stux people used IRC for this purpose, you don't need memory hog for this
I have a soft spot for Use Net. In 1992 I was going through the Use Net when I found some topics on Unix Derivatives for the Intel 386 or compatible. I down loaded the required sources, built the system and finally had a working copy of my own home rolled Gnu/Linux in about a month. I did not have X Windows as that was to much to download on a 2400 baud node. I left MS/ DOS and Windows (though MS/ Windows was only around version 3.x at the time and no one took it seriously) behind immediately recognizing them for what they were, to operating systems for home hobbyist and not serious developers.

Since then I have enjoyed my life as a 'nix user, admin and developer. I keep fluent with MS/ Windows to give support but do not use the OS myself except when testing ported software.
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Instead of a WhatsApp group or whatever, my two oldest friends and me have a private non-federated Mastodon instance running on my laptop for some time now
It's all private and closed so only we 3 use it to communicate and share stories with each other!
You can just disable federation and set everything private so it becomes a little intranet for friends!
#Mastodon is really amazing

@stux but how do they get to your laptop?
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@stux but how do they get to your laptop?
He answer that in a previous comment.