typst/template.typ

// apply this using:
// #import "../../template.typ": apply-template
// #show: apply-template


#let apply-template(body) = [
  #set text(lang: "de")
  #set page(
    margin: auto,
    paper: "a4",
  )
  #set outline(indent: 1.2em)
  #let clean_numbering(..schemes) = {
    (..nums) => {
      let (section, ..subsections) = nums.pos()
      let (section_scheme, ..subschemes) = schemes.pos()

      if subsections.len() == 0 {
        numbering(section_scheme, section)
      } else if subschemes.len() == 0 {
        numbering(section_scheme, ..nums.pos())
      } else {
        clean_numbering(..subschemes)(..subsections)
      }
    }
  }
  #set heading(numbering: clean_numbering("A.", "I.", "1.a."))

  // functions for my stuff
  #let title(body) = {
    set align(center)
    [ - #body]
  }

  // #set math.equation(numbering: "(1)", supplement: "equation")

  // Customization of text elements
  #set par(justify: true)
  #show link: underline
  #show link: set text(rgb("#1470da"))

  // here are replacements for commonly used shortcuts
  #show "z.B.": "zum Beispiel"
  #show "zb": "zum Beispiel"
  #show "vllt": "vielleicht"
  #show "CO2": $"CO"_2$

  #body // IMPORTANT: must be at the very bottom, else the body will be overwritten
]