Normal sudoku rules apply.
Consecutive sum segments: The box borders divide the blue line into segments. If the blue line enters the same box multiple times, these are counted as separate segments. The sums of these segments form a consecutive sequence of values, which can appear in any order along the line.
Circles: A digit in a circle indicates how many times that digit appears on the blue line. All such circles on the line are given.
Killer cages: Digits in a cage sum to the value in the corner of the cage.
CtC App: Link
F-puzzles: Link
If you enjoyed this puzzle and the logic of the consecutive segment sums, check out my harder puzzle, Whispering Snakeban:
Solution code: Row 6