Hi Mark,
Hope things are going well!
I wanted to suggest a feature for a future version of Araneae. In the Tools and Viewers settings, it would be cool if I could pass an environment variable like {{CURRENT_FILE_NAME_AND_PATH}} (which would output the current file name with an absolute path) in the viewer path as a parameter; I've been doing some Ruby development lately and I would love to be able to point the file at the Ruby compiler or a batch file.
Dan