# Create some kind of two sided attendance tracking app?

**URL:** https://community.glideapps.com/t/create-some-kind-of-two-sided-attendance-tracking-app/77848
**Category:** Ask for Help
**Created:** [November 12, 2024, 1:58pm UTC](https://community.glideapps.com/t/create-some-kind-of-two-sided-attendance-tracking-app/77848 "2024-11-12T13:58:33Z")
**Posts on this page:** 1
**Showing post:** 6

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### Author: ![ThinhDinh](https://sea2.discourse-cdn.com/flex002/user_avatar/community.glideapps.com/thinhdinh/32/49_2.png) [@ThinhDinh](https://community.glideapps.com/u/ThinhDinh)
#### Post date: [November 13, 2024, 11:49pm UTC](https://community.glideapps.com/t/create-some-kind-of-two-sided-attendance-tracking-app/77848/6 "2024-11-13T23:49:53Z")

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> [@dizzy A NEW way to Trebuchet!](https://community.glideapps.com/t/a-new-way-to-trebuchet/72402):
>
> wave Hey fellow Gliders! If you haven’t heard of the Trebuchet method, it’s a term coined by @Lucas_Pires that refers to creating inline arrays. Inline arrays can be an efficient way to create relations without requiring a helper table thereby preserving your row count! Previously, the Trebuchet method required about 6 columns and 2 custom actions (4 updates to add and remove a single item). This new version of the Trebuchet method cuts that usage IN HALF star_struck (3 columns, 1 action). …

It’s baked in this video by @Robert_Petitto .

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