Finally! My mother's old iMac has found a new life on my operating desk. After a number of false starts with Ubuntu and Fedora, I installed extra RAM and Debian's PowerPC Linux, which is now running as an X Terminal against my Fedora-based main computer. This allows me to see my logs and digimode displays on the same desk with the radio, making things a lot more convenient. As a Macintosh, the computer only ran MacOS 8.6, which was nearly unusable for modern Internet work.
I celebrated on 20 meters, working 3D2A (my first Fiji) and then K9QS/0 (the latter with 3.4 Watts output).