• Add server

/server add libera irc.libera.chat/6697

• Automatically connect at startup

/set irc.server.libera.autoconnect on

• Join a channel automatically

/set irc.server.libera.autojoin "#linux,#weechat"

• Add your nickname

/set irc.server.libera.nicks YourNick
/set irc.server.libera.username YourNick
/set irc.server.libera.realname "Your Real Name"

• Save configuration

/save

/server add znc_pirc znc.digitalhub.dedyn.io/6697
/set irc.server.znc_pirc.username karcio/pirc
/set irc.server.znc_pirc.password YOUR_PASSWORD
/set irc.server.znc_pirc.tls_verify off # not good but working
/connect znc_pirc
/set irc.server.znc_pirc.autoconnect on