Help, localized posts are not generated

[firedev]

Having most fun with bridgetown! Stuck with adding localized posts.

I followed the steps from the guide: https://www.bridgetownrb.com/docs/internationalization

1. Changed the config

available_locales: [en, es]
default_locale: en
prefix_default_locale: false

2. Created posts with baked in locales

_posts/2023-10-01-post.en.md
_posts/2023-10-01-post.es.md

3. Added locales in front matter

---
locale: en
---

4. Locale names are displayed

{% for local_resource in resource.all_locales %}
<a href="{{ local_resource.relative_url }}">{{ local_resource.data.locale | t }}</a>
{% end %}

Fail

• In the output folder output only default locale is generated.
• There is no local_resource, both links lead to the same page:

output/posts/post/index.html

Any advice on what I could miss?

[firedev]

Solved it by removing custom permalink: from collections.