Layout.kt

Layout(
  modifier = modifier,
  content = content
) { measurables, constraints ->
  // Don't constrain child views further, measure them with given constraints
  val placeables = measurables.map { measurable -> measurable.measure(constraints) }

  // Set the size of the layout as big as it can
  layout(constraints.maxWidth, constraints.maxHeight) {
    var yPosition = 0

    placeables.forEach { placeable ->
      placeable.placeRelative(x = 0, y = yPosition)
      yPosition += placeable.height
    }
  }
}