How to reuse liquid snippets from extension app in theme

[almeidaz]

I've create an app-extension which is working fine.
i use :
extensions/appname/blocks/app-block.liquid
extensions/appname/blocks/app-embed.liquid

also :
extensions/appname/snippets/my-snippet.liquid

I'm able to render my-snippet.liquid in app-block.liquid like that :
{% render 'my-snippet' %} and all works fine.

but now i need to use {% render 'my-snippet' %} somewhere else in my theme. In product-card.liquid in my case.
There is no possibility to add block via Customise in this situation.

When i try to {% render 'my-snippet' %} in product-card.liquid i get an error

Liquid error (snippets/product-card line 89): Could not find asset snippets/my-snippet.liquid

I understand that now app extension have assets separated from Theme directory and are published via extension.

How can i {% render 'my-snippet' %} in product-card.liquid ?
It is possible? there is a special path like {% render 'app-name/my-snippet' %} or {% render 'app-id/my-snippet' %}

Thanks in advance.