Carpet Arrows

Normal sudoku rules apply.

Digits along an arrow must sum to the 2-digit number in that arrow's pill (read from left to right or top to bottom).

Arrows also act as carpets, digits must repeat in the same order when unrolled (straightened) starting from the arrow pill.

Adjacent digits along an arrow (including the pill) must differ by at most 4.

Digits separated by a white dot must be consecutive. Not all dots are given.

One of the main diagonals contains a set of the digits 1-9, the solver must determine which one.