Hardboiled Wanderer
I'm just here for the guzzoline...
I'm gonna assume you mean the game's actual content. In that case, almost nowhere, barely started. I've spent years building the technology first. You see, when I started, I didn't really know what I was doing, lol. But I keep doing it, reworking, improving, figuring out how the original engine worked and designing system to work exactly like it. These days, I dare to say the tech is on a pretty professional level (I mean, after becoming a professional dev, I have seen a lot worse, lol). It's a playable game, most mechanics are implemented, beyond what tech demo had. But that's about it.
Yesterday is the farthest to my knowledge, pretty decent progress there content-wise from what I've heard.