The source code is now available from GooTool's download page.

The code doesn't correspond to any released version, it's the current development snapshot of what will probably end up being version 1.1.

Before 1.1 there is some fairly major work required, partly to refactor the monolithic Controller, but mostly better abstracting the source and target games, in particular to support "fast rebuild" that only rebuilds files that it really needs to (see doc/fast_rebuild.txt for the procedure).

From the next GooTool version onward, I'll upload the source code corresponding to that version when I do the release.

-davidc