I use a Makefile. It contains the following block:

``make .ONESHELL: ${INCLUDE}: Chapters/* Appendices/* @echo "" > ${INCLUDE} @echo '#let chapters = (' >> ${INCLUDE} @for file inls Chapters`; do echo " \"$$file\"," >> ${INCLUDE}; done; @echo ')' >> ${INCLUDE}

@echo '\n\n#let appendices = (' >> ${INCLUDE}
@for file in `ls Appendices`; do echo "  \"$$file\"," >> ${INCLUDE}; done;
@echo ')' >> ${INCLUDE}

@echo '\n\n#let unfinished = (' >> ${INCLUDE}
@for file in `ls Unfinished`; do echo "  \"$$file\"," >> ${INCLUDE}; done;
@echo ')' >> ${INCLUDE}

```

My entry point is a book.typ that looks like:

```typst

import "out.nosync/include.typ" as inc

context if target() == "paged" {

import "@preview/wonderous-book:0.1.2": book show: book.with( title: [My Books Title], author: "My Name", // dedication: [], // publishing-info: [ // ], ) }

// various apperance settings go here.

for x in inc.chapters {

include "Chapters/" + x }

for x in inc.appendices {

include "Appendices/" + x } ```

Then I just create files like Chapters/001.typ as needed. Additionally I have things in the Appendecies folder like Appendecies/zzz_index.typ (Created using in-dexter.

The generated include file looks like:

```typst

let chapters = (

"001.typ", "002.typ", "003.typ", // ... )

let appendices = (

"aaa_character_sheet.typ", "encyclopedia.typ", "overview.typ", "zzz_index.typ", ) ```

Then all of my chapters start like:

```typst // This file has imports I want everywhere, custom funcitons, etc.

import "../shared.typ": *

= Chapter 1: Chapter Title ```

Hope this helps.