Hey, thanks for the long-term support! The day cycle is coming back for sure - it'll be in the first Steam release and probably added to the web version after that (it'll need a rework of the UI for web). I hadn't considered bundling the old version but I suppose it could be possible, though it'd need to be a separate program... Just in case you aren't aware, it's still up at old.slowroads.io
As for moving the camera with controller, that's already supported - the inputs are unmapped by default (stick drift caused issues of phantom camera movement) but if you go into Settings -> Controls -> Controller and scroll down the mapping list, it's at the bottom. For the Steam version I'm rebuilding the UI to include support for controller navigation, too.
And on music, I definitely want to figure out something, at least an in-game player which loads files from a local folder. I think it might be possible to integrate with Spotify or YT music, and connect to public radio broadcasts, but that's something I still need to explore.
Thanks again!