## Advantages

> ### Cross libc
> +0-15% performance, depending on the application  
> packages use the most appropriate libc library
> ### Profile-guided optimization
> +5-20% performance, optimization for any usage scenario  
> (to use in build set pgo=true in env)

## Flexibility
> ### Simple insulation
> At the repository level  
> Packages with completely incompatible libraries are separated into different repositories:  
> /pkg/\<repo\>  
>  
> Between the packages  
> Packages are installed as "packages" in different folders:  
> /pkg/\<repo\>/\<pkgname\>  
>  
> The repository combines files /pkg/\<repo\>/\<pkgname\>/{bin, lib, ...} to /pkg/\<repo\>/{bin, lib, ...}  
> ### Storage optimization
> Final Assembly Philosophy:  
> After the final system build, when no more packages need to be installed.  
> Flexible removal of all unused files by reading time  
## Easy to use
> Isolating packages makes it easy to find a configuration  
> `pkg config \<pkgname\>` squirrel makes it even easier