>>3
The buffers are named. Ctrl-S saves the buffer.
Use the setBufferName function to set the name.

The buffers are intended to be used as live REPLs as well as source files. In that way, its similar to a C64.

I haven't directly made it possible to save the state of the world, just the buffers. If you want to save some state, you need to print what you want to save into the buffer.
For example:
print2(inspect(_G)) traverses all variables and tables and inserts their values into the buffer.

I should probably make a video.