One thing I'd recommend if you're planning on using the Ex Nilho sieve, is don't get the player to use it for too long. I don't know about others, but personally I feel way too many packs use it, and it makes all these packs the same old grind to get resources. Either introduce the Ex Astris autosieve, or give completely new ways to get resources.
Just some thoughts I wanted to share. Ex Nilho works well as a starting mod, but I feel it gets old quickly. Of course, it's your decision & I'm just trying to be helpful

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