Every night, Greenstone3 snapshot releases are automatically generated for windows, linux, and soon mac. They are made available here. (Greenstone2 snapshots coming soon!)
Note: When using the Linux native binary installers, remember to set the .bin file as executable. Also, please run the installer in a terminal, as there are currently some important prompts and messages which only appear in the terminal window.
Linux Native Executable: greenstone-3s2008.05.13-linux.bin