@wordpress/block-editor does not work standalone

[saas-developer]

Describe the bug
A clear and concise description of what the bug is.
@wordpress/block-editor does not compile/run outside gutenberg.

To reproduce
Steps to reproduce the behavior:

1. Go here: https://www.npmjs.com/package/@wordpress/block-editor
2. Look at the usage example and copy and paste the code in a simple react app
3. It does not compile.
4. Error is

./node_modules/@wordpress/components/build-module/alignment-matrix-control/index.js
Attempted import error: 'unstable_Composite' is not exported from 'reakit' (imported as 'Composite').

Expected behavior
A clear and concise description of what you expected to happen.
A standalone gutenberg editor should be initialized

Screenshots
If applicable, add screenshots to help explain your problem.

Editor version (please complete the following information):

• WordPress version: [e.g: 5.3.2]
• Does the website has Gutenberg plugin installed, or is it using the block editor that comes by default? [e.g: "gutenberg plugin", "default"]
• If the Gutenberg plugin is installed, which version is it? [e.g., 7.6]

Desktop (please complete the following information):

• OS: [e.g. iOS] MAC
• Browser [e.g. chrome, safari] Chrome
• Version [e.g. 22] 83

Smartphone (please complete the following information):

• Device: [e.g. iPhone6] N/A
• OS: [e.g. iOS8.1]
• Browser [e.g. stock browser, safari]
• Version [e.g. 22]

Additional context

• To report a security issue, please visit the WordPress HackerOne program: https://hackerone.com/wordpress.

[gziolo]

The issue is caused by the fact that the block editor was using unstable API from Reakit that was promoted to stable API. It should get resolved in a few days when WordPress packages with related changes are published to npm.

Related comment in Reakit library where I ask whether renamed API can be aliased for backward compatibility: ariakit/ariakit#667 (comment)

[gziolo]

I think #23236 resolves it on our end, @diegohaz can you confirm?

[diegohaz]

#23236 fixes this, but it doesn't help with older versions. 😕

I'll make a patch on Reakit to fix this asap.

Ideally, when using experimental modules from npm packages, we should use the exact version in our package.json (without ^).

[diegohaz]

It should be fixed now!

[joaojoyce]

Sorry for the dumb question, but how can I "npm install @wordpress/block-editor" for this particular fix/branch?

[gziolo]

You only need to install a new version of Reakit.