The de facto default chat software is probably WhatsApp, or perhaps Telegram if your group of people lives in the german alternative scene (or, placed from germany, perhaps more eastern countries?).
But default group chat could well be Discord, not formerly Slack(?), any more.
The NFT had nothing to do with the takedown. According to the Vanced team, it was taken down because the logo they used was too similar to the official one.
Nothing too crazy but makes my work flow easy to swap between locations. I got VSCode server, PHPMyAdmin, Transmission (Web based torrent client), DIY Youtube downloader client, DIY video editor, A bunch of service managers, and a couple more things.
It's basically a whole developer suite with remote processing. I could do AI training on my cellphone with this setup if I wanted.
I've been working on a DIY spotify clone for a media player.
It makes it really convenient having all my files on a central server, so I'm not juggling drives, and copying over data.
As well, it's automatically backed up weekly so it's always safe.
I really hope the self-hosted option becomes a thing, but unfortunately "we are not averse to the idea" means especially little in the tech world these days.
That being said, really really hoping for your success! It finally fills a MUCH needed gap in 2021 consumer image viewing software.
There are many many gaps in it right now. Synology is basically the only self-hosted photo solution that grandma could use. Honestly surprised that more people aren't taking advantage of the opportunity.
Synology's Moments is ok, but it has issues. Not mobile friendly at all, can only create one shareable link per album, and others can't contribute their pictures to your album. Those are the biggest issues in my experience.