# Naming Packages

OnePub allows you to name your private package using a name that is already taken by a public package on pub.dev.

We however generally don't recommend this as it may cause confusion at a later stage if you need to use the same named package from pub.dev.

If you are using the OnePub tools (`onepub pub private` `onepub pub add <dep>`) then there is no issue using existing public names as every package is explicitly referenced with the OnePub URL.

## PUB\_HOST\_URL

**not recommended!**

Dart supports configuring your private Package repository by setting an environment variable PUB\_HOST\_URL.

When you set the PUB\_HOST\_URL environment variable then every `dart pub` command will be sent via the OnePub repository.

This has a couple of consequences.

1\) OnePub will see every package you depend on. Probably not a big deal, but if you are particularly sensitive about this information then it's not desirable

2\) If you use any package name that is already used by a package on pub.dev then you will no longer be able to access the public package of that name. Remember that whilst your package name isn't used today someone may publish a package to pub.dev at a later date.

To avoid these types of name conflicts, we recommend that you prefix your package names with your reverse domain name.

e.g. dev.onepub.test


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.onepub.dev/fundamentals/naming-packages.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.