The Zipperverse

Normal sudoku rules apply.

Divide the grid into galaxies: orthogonally connected groups of cells that have 180 degree rotational symmetry about their centers (marked with a small dot). All cells must be part of a galaxy; no galaxies overlap.

Lilac dots (containing a "z") mark "Zipper" galaxies where rotationally symmetric pairs of digits sum to the value of the center digit. Grey dots mark "renban" galaxies whose digits form an unbroken consecutive sequence in any order. White dots mark galaxies whose digits do NOT form a sequence. Digits may not repeat within a galaxy.

As per Galactic Map Standards: All galaxies with at least TWO cells indicate their SMALLEST digit with a diamond icon. All galaxies with at least SIX cells indicate their LARGEST digit with a circle icon.