The game is being worked on and you can follow the work ~5 times a week on stream via
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. It's slow but steady.
Then again, additional money won't change the speed of the development, mainly because drawing the art takes its time and the dev certainly isn't pushing to get additional help - for many reasons. So if you want to give some money because you want to show some gratitude and like to have some of the perks, that's fine. If you want to give something to potentially speed up the development, there's no use and you probably shouldn't do it.