# "Covers" digital bookshelf app

**URL:** <https://community.thunkable.com/t/covers-digital-bookshelf-app/2548134>\
**Category:** Questions about Thunkable X\
**Created:** [August 17, 2023, 12:13am UTC](https://community.thunkable.com/t/covers-digital-bookshelf-app/2548134 "2023-08-17T00:13:42Z")\
**Posts on this page:** 1\
**Showing post:** 10

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**Author:** ![tatiang](https://sea1.discourse-cdn.com/flex015/user_avatar/community.thunkable.com/tatiang/32/55482_2.png) [@tatiang](https://community.thunkable.com/u/tatiang)\
**Post date:** [August 19, 2023, 10:45pm UTC](https://community.thunkable.com/t/covers-digital-bookshelf-app/2548134/10 "2023-08-19T22:45:16Z")

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I’m pretty sure Firebase doesn’t have any significant limitations. You’re talking about storing 1,000 rows of data. That’s a small amount of data for any database to hold.

It can be a little hard to find updated info about using Firebase with Thunkable. It’s pretty straightforward in the sense that, for example, if you want to save “hello” at /Users/userId/abcde then you would set cloud variable “Users/userId/abcde” to “hello”.

You can see a very simple use of this here: [Cloud variable not storing in firebase - #6 by tatiang](https://community.thunkable.com/t/cloud-variable-not-storing-in-firebase/1787587/6)

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