Nomenclature:
given that all cages sum to the same total, an "x-cage" is a cage with x cells in it.

The existence of a 5-cage implies the cage sum at least 15
The existence of 2 distinct 2-cages implies the cage sum is at most 15
=> cage sum=15

By counting the number of cages of each size, it's clear every possible cage summing to 15 is in the grid.

The white kropke identifies the 78 2-cage
=> the other 2-cage is the 69

Consecutive black kropkes on row 9 contain 124 or 248
=> the 4th cell in the cage must be 8 or 1, and the 1248 cage is identified.

The pair of black kropkes on row 1 could only be 1248 or 2436, but 1248's already taken
=> the 2436 cage is identified.

3 of the remaining 4 4-cages contain kropke dots
=> the only location for 1257 is the one without

In row 9, the 1248 prevents 1347 or 1239 4-cages from being in box 9
=> 1356 is the only one it can be, placing 1 and 3.

The white and black kropkes in the 4-cage in box 6 can now only be 1239, placing all numbers
=> the cage containing 2346 resolves to 24 and 36 pairs
=> the cage containing 1356 resolves its 5 and 6
=> can place 2 on the black kropke in the 5-cage

1347 is the final 4-cage, placing 1 and 7
=> 9 placeable in row 9

The 3-cages split into 4 sets, those that can have black kropkes, those that can have white kropkes, those that can have both, and those that can have neither.

Only 249 and 348 can have a black kropke, but 348 prevents the 34 in column 1, so that identifies the 249, placing all digits.
=> 3 and 4 resolve in the cage continaing 1347 in column 1.
=> 2 and 4 resolve in the cage containing 2436 in row 1.
=> 7 and 8 now placeable in box 9
=> 8 placeable in column 8

267 is needed in one of the white kropke 3-cages. It can't go in either in box 2 because the 2 is unplaceable. So it must be in box 4.
=> 6 placeable in row 6
=> 1 and 8 placeable in that same cage
=> 4 placeable on black kropke in 5-cage
=> cage containing 1248 fully resolves
=> 5 and 9 placeable in row 5
=> 3 placeable in box 5

456 can now not go in the 3-cage spanning boxes 1 and 2, as the both the 4 and 5 would need to be in r3c3.
=> 465 fully placeable in the straight 3-cage with kropke
=> 36 in 2436 cage resolves
=> 127 triple in cage containing 1257 places the 5 in that cage
=> 4 placeable in column 9
=> 7 placeable in box 6
=> 8 and 4 placeable in row 4

=> 348 fully placeable in the other 3-cage with a kropke
=> naked 8 in column 2
=> that's therefore the 258 3-cage, fully resolved
=> 6 placeable in column 1

The straight 3-cage can now only be 159, all digits placeable

The 7 in box 2 places the 1 in box 3
=> 2 and 7 resolve in box 3
=> 3 and 7 placeable in row 1
=> 6 and 7 resolve in box 4

Final 3-cage can be filled with 3, 5 and 7
=> 7 and 8 resolve in box 5
=> 7 and 9 resolve in box 2
=> 6 and 9 resolve in box 5

5-cage can be filled with 3, 5, and 1.
1 and 9 placeable in box 1.
2, 5, and 6 placeable in box 7.
6, 8, and 9 placeable in box 8.

Bosh!