# Add vs dev at a local path

**URL:** <https://discourse.julialang.org/t/add-vs-dev-at-a-local-path/58150>\
**Category:** New to Julia\
**Tags:** package, development\
**Created:** [March 29, 2021, 7:55am UTC](https://discourse.julialang.org/t/add-vs-dev-at-a-local-path/58150 "2021-03-29T07:55:20Z")\
**Posts on this page:** 1\
**Showing post:** 6

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**Author:** ![GunnarFarneback](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/gunnarfarneback/32/1827_2.png) [@GunnarFarneback](https://discourse.julialang.org/u/GunnarFarneback)\
**Post date:** [March 29, 2021, 9:37am UTC](https://discourse.julialang.org/t/add-vs-dev-at-a-local-path/58150/6 "2021-03-29T09:37:30Z")

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Anytime you `add` or `dev` a package it will just replace whatever specification of the package you had previously. You also have the option of doing things like `add path/to/package#master` to choose a specific branch. It is easy to inspect what happens by reading the package entry in `Manifest.toml` in your environment.

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_[View the full topic](https://discourse.julialang.org/t/add-vs-dev-at-a-local-path/58150)._