Awesome - more stuff like this please. Flow-based programming is a really great thing and this is a good start. Props for making it available as a local service; this seems reasonably robust and usable, especially for a first iteration. More examples would be good, as would nestable macros. Native Instrument's digital audio tool Reaktor is a great example of what can be achieved in this area, as are the tools from DSP Robotics, which are also a little more code-oriented.
Win 64 Binaries work fine, but they unpack to a file called 'st' which has to be renamed to 'st.exe'. Tsk tsk. From the docs:
if you're a Windows user we do provide binaries but don't know much about how to interact with a Windows machine - you will need to translate these instructions to Windows yourself.
haha. It's not that scary folks, try it!