# How to "merge" several derivation outputs for plugin system?

**URL:** https://discourse.nixos.org/t/how-to-merge-several-derivation-outputs-for-plugin-system/537
**Category:** Development
**Created:** [July 18, 2018, 6:03pm UTC](https://discourse.nixos.org/t/how-to-merge-several-derivation-outputs-for-plugin-system/537 "2018-07-18T18:03:53Z")
**Posts on this page:** 1
**Showing post:** 2

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### Author: ![mpickering](https://discourse.nixos.org/user_avatar/discourse.nixos.org/mpickering/32/16_2.png) [@mpickering](https://discourse.nixos.org/u/mpickering)
#### Post date: [July 18, 2018, 7:19pm UTC](https://discourse.nixos.org/t/how-to-merge-several-derivation-outputs-for-plugin-system/537/2 "2018-07-18T19:19:00Z")

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I think this is what `symlinkJoin` is used for.

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