share history between concurrently open sessions

dot_config/zsh/dot_zshrc

@@ -39,6 +39,9 @@ if [[ -n "$SCHROOT_CHROOT_NAME" ]]; then
     PS1="[chroot:$SCHROOT_CHROOT_NAME] $PS1"
 fi
 
+# share history between open shells
+setopt share_history
+
 alias boinctui='boinctui --boinchost=localhost'
 alias bt='bluetoothctl'
 alias c='clear'