// Quarter US Letter — 4.25" × 5.5" (108mm × 140mm)
// Fits standard US letter paper folded twice, easy DIY printing

#let page-setup(body) = {
  set page(
    width: 4.25in,
    height: 5.5in,
    margin: (
      top: 10mm,
      bottom: 10mm,
      inside: 12mm,
      outside: 10mm,
    ),
    numbering: "1",
    number-align: center + bottom,
  )
  body
}