Thanks! I keep getting swamped with work on adventure writing, after the in-progress work is complete, I'm putting my focus here.
There aren't any solo rules yet, but I'm planning on quite a few different modes of solo play for this game, again, once the base bits are done. For now, you could use a combination of Alfred Valley's Semiotic Standard, and watt's Solo Protocol (both free!), these are the two mechanics I plan on adapting for the adventuring parts of 5MW solo play.