Logic Masters Deutschland e.V.

This puzzle is a sequel of sorts to my previous puzzle Pointed Chaos, and should be a bit more approachable than its predecessor.

Rules:

Chaos Construction: Each row, column, and region must contain the digits 1-9 once each. Regions consist of a set of nine orthogonally connected cells and must be determined by the solver.

Digits along an arrow must sum to the digit in the arrow's bulb.

The digit in each arrow's bulb also acts as a minesweeper-like clue for the region. The digit in the bulb is equal to the total number of cells (including itself) in the 3x3 area centered on the bulb that are part of the same region as the bulb. Note that for a bulb on the edge of the grid, there will be fewer than nine grid cells in the 3x3 area centered on the bulb.