for chat there's IRC or bit more modern XMPP.

It's more likely to be a sb like me who just gathers stuff like that for future use in (maybe) questionable way.

It would be great to have servers that support both protocols, i prefer XMPP because of speed but some say matrix is safer.

I mean efficient clients that are both easy for non-techy ppl and their 4GB of RAM.

Looks like it's got same problems as Matrix does (despite architecture diffirences).

I use TinyBit launcher, i think it can do it but i never needed to because junk app quickly go so far in list you just don't see them.

You need optimus or bumblebee to do that. Just beware those are pain to install.

You can get a domain name 4free and anonymously https://freedns.afraid.org

Non-native english speakers tend to mix up various styles, you could ask somone to paraphrase your text.

Asimov's Foundation series (two times polish translation and once original) and The Hitchikerms Guide to Galaxy by Adams Douglas (once in polish, twice original)

Try to shine strong flaslight trough it, if you'll see traces of wire it's a RFID/NFC sticker. Those are used for identification.

Guess you should go search for more Laura's songs.Ii love her voice too!