> For the complete documentation index, see [llms.txt](https://loafgatr.gitbook.io/how-to-install-p5ex/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://loafgatr.gitbook.io/how-to-install-p5ex/installing-p5ex/building-mod.cpk.md).

# Building mod.cpk

Finally, after all that hard work, the last step is to build the mod.cpk file. This is going to install P5EX into P5. 

## Building and merge package load out

Click on the hammer icon as seen here.

![](https://lh4.googleusercontent.com/yF1vvrnkVnIIkwLeTnwEfFLBTN9g7aWFkRgOZtY3Ds755IbHg2A2tGWhfA3OKqvJpoLBIDzvfZXnwRAoT7mIZEHvKap7ZDgpjOtQjO3BoyE5nwnGRNbe4fqUWOfPNn0k5UsrMWNN=s0)

This is going to build the mods into P5.

This may also take a bit to complete but it probably won't be as long compared to unpacking the base files for P5.

![](https://lh5.googleusercontent.com/3jLeX6KqtlblQ6dKxjXtbtx8MUx2mygF1NmO-Z9f6ktzblH1GaLL3PkITyDpTb9huJHy6tuWQhbwjypF3HMmC-z4TjAYXDGmlmQ5VXW0t73ckEXPDAG23hqAIJZmdxRuC9CgGBcR=s0)

A window will pop up when the building is finished.

![](https://lh5.googleusercontent.com/4BXGf3Y21MW8SH0Hecnjbe17_Wwq9pA-17tI7xfeKI9RZ3J4y_Bp17uU4pNNCu-Vcf7P1_vx2VJxhf1eDMamT_IIXDToYMonclZIh2Fa4_WkefFSOJTUwveqGXU9sHqwHkABxjJO=s0)

## Verify installation

The mods should be packaged into a file called **mod.cpk** that is located in your P5's USRDIR folder. 

![](https://675170313-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-MkPt8lyxo8yTecTbFdF%2F-MkeVwkvDpDEAezd0h3h%2F-MkeWictssdcWIE0d4D_%2Fimage.png?alt=media\&token=321f9e05-9e71-4545-9d5f-6c828e8574d3)

## Running P5

You can run P5 either through the Package Manager by clicking the rocket icon or through RPCS3. Whichever works for you.

{% hint style="success" %}
Congratulations! You've successfully installed P5EX!
{% endhint %}