I always like to say "push it to the limit" and then I have this homer Simpson with muscle body sitting on his super couch (I forgot which TV series the Simpsons made Satire of) picture in my head 🤣
Hmm I don't know if there's a "correct" way, but you could flash the stock version on the first SD card and fire Ubuntu up. Then configure your system and shut down.
Next I would dd the whole SD card into an .img file which then you could flash to all other SD cards.
Be aware of changing hostname and static IP for each new sd card to avoid network trouble
First it is reinventing the wheel, xmpp exists for a very long time, second there are only a few server implementations, third the resource consumption of them is so high that you can't really run it reliably on a raspberry pi for your family
I always like to say "push it to the limit" and then I have this homer Simpson with muscle body sitting on his super couch (I forgot which TV series the Simpsons made Satire of) picture in my head 🤣
Update, hah found it😁 https://m.youtube.com/watch?v=7Mhb9D35pkc&pp=ygUdc2ltcHNvbnMgcHVzaCBpdCB0byB0aGUgbGltaXQ%3D