Corresponding Source build instructions for chessground (GPL-3.0-or-later)
=========================================================================

Upstream project : https://github.com/lichess-org/chessground
License          : GPL-3.0-or-later (see ./LICENSE)

What is here
------------
  src/                        TypeScript source — the preferred form for
                              modification. This is the authoritative source
                              that builds the bundle below.
  tsconfig.chessground.json   TypeScript config used for type-checking the
                              source (copied from the repository root).
  chessground.min.js          The minified ES-module bundle Andromeda serves to
                              browsers. This is OBJECT CODE, not source; it is
                              produced from src/ by the command below.
  chessground.base.css        Stylesheets used by the board.
  chessground.brown.css
  LICENSE                     Full GPL-3.0 text and copyright notice.

How chessground.min.js is built
-------------------------------
From a checkout that contains this src/ tree, with esbuild installed:

  esbuild src/chessground.ts \
      --bundle \
      --format=esm \
      --outfile=chessground.min.js \
      --minify

(In the Andromeda repository this is wired as the npm script
"build:chessground", which runs the same esbuild invocation with the
repository-root-relative paths static/core/vendor/chessground/src/chessground.ts
and .../chessground.min.js.)

Type-checking uses tsconfig.chessground.json:

  tsc -p tsconfig.chessground.json

This file and the sources beside it satisfy the GPLv3 §6 obligation to provide
the Corresponding Source for the object code distributed from this same place.