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trayer(1) on Linux

The text 74ee33c6d9f7, as Debian 11 (Bullseye), Debian 10 (Buster), Debian 9 (Stretch), Debian 8 (Jessie), Debian 7 (Wheezy) shipped it.

a lightweight GTK2-based systray for UNIX desktop

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trayer(1) on Linux now