Dutch Flat Mates: Hitlines

Normal sudoku rules apply.

The grid is covered in fog. Entering correct digits may clear fog somewhere in the grid. No guessing is necessary.

Every 5 in the grid must have a 1 directly above it or a 9 directly below it. It might have both, but it doesn't need both.

Beige lines are 'hitlines'. In this puzzle, hitlines only move orthogonally. Digits don't repeat on a hitline. The small clue on the square at the start of a hitline indicates the total of any digits along the line that equal their position number, starting at the square (which is position 1.)

Eg: If a 4-cell hitline reads 1794, then its clue would be 5 (the sum of 1 and 4) because 1 is in position 1, 4 is in position 4, and these are the only two digits which match their position number.