Only show pfetch and fortune at start of terminal session

hosts/home.nix

@@ -162,6 +162,7 @@ in
         command rm -f -- "$tempfile" 2>/dev/null
       }
 
+      if [ -z $TERMINAL_STARTED ] && [ -z $IN_NIX_SHELL ]; then
         pfetch
         while true; do
           f=`fortune`
@@ -170,6 +171,8 @@ in
             break
           fi
         done
+        TERMINAL_STARTED=1
+      fi
     '';
   };
 }