can't install php-scrypt

[ant100]

Hi!

Please I need help installing this extension. I'm using php 7.4 and when I run

pecl install scrypt

I get the following message:

No releases available for package "pecl.php.net/scrypt"

Any ideas on what could be wrong? I tried following the steps for installation with Visual Studio 2008 however I think it fails because I'm trying to run it inside Visual Studio 2017.