// Digest — 5.5" × 8.5" (140mm × 216mm)
// Half US letter, classic digest/trade paperback size
// Most POD-friendly format

#let page-setup(body) = {
  set page(
    width: 5.5in,
    height: 8.5in,
    margin: (
      top: 15mm,
      bottom: 15mm,
      inside: 18mm,
      outside: 12mm,
    ),
    numbering: "1",
    number-align: center + bottom,
  )
  body
}