x = startSketchOn(XY)
  |> startProfile(at = [-2, -1])
  |> angledLine(angle = 0, length = 3, tag = $a)
  |> angledLine(angle = segAng(a) + 90, length = 2)
  |> angledLine(angle = segAng(a), length = -segLen(a))
  |> line(endAbsolute = [profileStartX(%), profileStartY(%)])
  |> close()