perl-Gtk2-Unique: perl-Gtk2-Unique (use single instance applications) perl-Gtk2-Unique: perl-Gtk2-Unique: Gtk2::Unique is a Perl binding for the C library libunique which perl-Gtk2-Unique: provides a way for writing single instance application. If you perl-Gtk2-Unique: launch a single instance application twice, the second instance will perl-Gtk2-Unique: either just quit or will send a message to the running instance. perl-Gtk2-Unique: perl-Gtk2-Unique: homepage: https://metacpan.org/release/Gtk2-Unique perl-Gtk2-Unique: perl-Gtk2-Unique: perl-Gtk2-Unique: