# CH8 - Tooling Section

**URL:** <https://forums.kodeco.com/t/ch8-tooling-section/52055>\
**Category:** Realm: Building Modern Swift Apps with Realm\
**Created:** [October 6, 2018, 4:35pm UTC](https://forums.kodeco.com/t/ch8-tooling-section/52055 "2018-10-06T16:35:25Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![jpatrickmc](https://assets.chunter.kodeco.com/user_avatar/forums.kodeco.com/jpatrickmc/32/81494_2.png) [@jpatrickmc](https://forums.kodeco.com/u/jpatrickmc)\
**Post date:** [October 6, 2018, 4:35pm UTC](https://forums.kodeco.com/t/ch8-tooling-section/52055/1 "2018-10-06T16:35:25Z")

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The text states “FlashCardsTooling defines the TOOLING environment variable so you don’t need to do that yourself.”

I could be overlooking, but where and how is that set by FlashCardsTooling?

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<div class="post-metadata">

**Author:** ![icanzilb](https://assets.chunter.kodeco.com/user_avatar/forums.kodeco.com/icanzilb/32/109333_2.png) [@icanzilb](https://forums.kodeco.com/u/icanzilb)\
**Post date:** [October 6, 2018, 6:08pm UTC](https://forums.kodeco.com/t/ch8-tooling-section/52055/2 "2018-10-06T18:08:09Z")

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Go to Manage Schemes, select the FlashCardsTooling scheme, go to Run \> Arguments and in the Environment Variables section you will see the `TOOLING` parameter.