Push Notifications: https://en.wikipedia.org/wiki/Push_technology

The app isn’t listening, Google Play Servicea is. The app registered with the push server to send you notifications.

Which file browser are you using?

They don’t call them Stealerships for nothing.

Yes my answer is for use with Let’s Encrypt.

Fair, I don’t know why I read OPs post as asking for let’s encrypt certs. Internal CA is indeed an option.

They do not. See my other reply about DNS verification.

OP is asking for cases where you don’t want to allow the service (or reverse proxy) to be accessible via the web.

You can use the DNS verification method. Either using nsupdate with bind or what ever protocol your DNS provider and favorite ACME (certbot, acme, lego, etc) utility supports. As long as your DNS server is publically reachable that will work, even if the subdomain itself doesn’t exist publically.

“Mislead” and “Duped” are funny ways of writing orchestrated.

Certainly not Larry Silverstein. He had a dermatologist appointment!

You don’t need evolution for gnome-contacts and I’m not sure how much more lightweight a contact app can get. It literally does nothing but list and edit contacts, and works with dav via gnome-accounts.

Found this not so long ago and it literally made me sad I don’t manage an LDAP anymore!

What’s wrong with gnome-contacts?

https://github.com/Macmod/godap

Peertube

Oh yes!

Look into Snapcast

Wished the tweet was real, that would be one for the history books.

Since when is Daddy a sex? It’s clearly a gender that is not exclusive to males.

You can be pedantic if you want, but it’s pretty obvious OP meant RS232 serial.