esbuild timeout when codesplitting - ruby-on-rails

Question

Using esbuild with a Rails 7 app, I've been successful in code splitting 2 packages: one with the StimulusJS controllers and another with a ReactJS app. The configuration works fine in development.
When pushed to the CI (GitHub Actions) or pushed directly to Heroku, it times out.
package.json
"scripts": {
"build": "node app/assets/config/esbuild.js",
"build:css": "sass ./app/assets/stylesheets/application.sass.scss ./app/assets/builds/application.css --no-source-map --load-path=node_modules"
}
app/assets/config/esbuild.js
const path = require('path');
require("esbuild").build({
entryPoints: ["stimulus.js","article.js"],
bundle: true,
minify: true,
outdir: path.join(process.cwd(), "app/assets/builds"),
absWorkingDir: path.join(process.cwd(), "app/javascript"),
watch: true,
loader: { '.js': 'jsx' },
publicPath: 'assets',
target: 'es6',
// custom plugins will be inserted is this array
plugins: [],
}).catch(() => process.exit(1));
GitHub Actions
yarn install v1.22.19
[1/4] Resolving packages...
success Already up-to-date.
Done in 0.13s.
yarn run v1.22.19
$ node app/assets/config/esbuild.js
Error: The operation was canceled.
Heroku
Hangs on this step
remote: $ node app/assets/config/esbuild.js

Answer 1

The solution was to remove watch: true
const path = require('path');
require("esbuild").build({
entryPoints: ["stimulus.js","article.js"],
bundle: true,
minify: true,
outdir: path.join(process.cwd(), "app/assets/builds"),
absWorkingDir: path.join(process.cwd(), "app/javascript"),
watch: false, // set to true in dev
loader: { '.js': 'jsx' },
publicPath: 'assets',
target: 'es6',
// custom plugins will be inserted is this array
plugins: [],
}).catch(() => process.exit(1));
Update
For other people who are struggling with this, please see the updated solution and discussion on the project.
const path = require('path');
console.log("NODE_ENV: " + process.env.NODE_ENV);
console.log("CI: " + process.env.CI);
console.log(!(process.env.NODE_ENV === 'production' || process.env.CI));
require("esbuild").build({
entryPoints: ["stimulus.js","article.js"],
bundle: true,
minify: true,
outdir: path.join(process.cwd(), "app/assets/builds"),
absWorkingDir: path.join(process.cwd(), "app/javascript"),
watch: !(process.env.NODE_ENV === 'production' || process.env.CI),
loader: { '.js': 'jsx' },
publicPath: 'assets',
target: 'es6',
// custom plugins will be inserted is this array
plugins: [],
}).catch(() => process.exit(1));