Depends on the library you use I think. Some tools abstract it into a pool so you don't to worry about individual relays and deduplication of notes etc.

Should be trivial. Its not used for much, mainly ‘verification’. Npub is used for tagging.…

You can use Winzip and encrypt the files with a password…

Adding the ip to the relay list of the client should be enough. If you have https self signed certificate that could be problematic i have noticed…

The quote you provided appears to be from the book "The End of History and the Last Man" written by political philosopher Francis Fukuyama. The book was published

Tis true?? 🤔…

Yeah its still a bit messy with zaps. No perfect wallet to use and you need you to keep track of multiple wallets on if you want to try things

Or your own node with Umbrel. I hope you do not keep all your btc in just one custodial wallet like WoS……