Unable to install in PHP8 Symfony 6

[fd6130]

When i try to install the runtime/react to my fresh new project, the composer show the following error:

composer require runtime/react
Using version ^0.1.0 for runtime/react
./composer.json has been updated
Running composer update runtime/react --with-all-dependencies
Loading composer repositories with package information
Restricting packages listed in "symfony/symfony" to "6.0.*"
Updating dependencies
Your requirements could not be resolved to an installable set of packages.

  Problem 1
    - Root composer.json requires runtime/react ^0.1.0 -> satisfiable by runtime/react[0.1.0].
    - runtime/react 0.1.0 requires symfony/runtime ^5.3 -> found symfony/runtime[v5.3.0, ..., v5.4.3] but it conflicts with your root composer.json require (6.0.*).


Installation failed, reverting ./composer.json to its original content.