Trying to install 10.2 on Drupal 9 fails

[carolpettirossi]

When I try to install 10.2.x-dev on Drupal 9, it failed due to hal 2.0 being available only for Drupal 10

composer require ycloudyusa/yusaopeny:10.2.x-dev@dev -W
./composer.json has been updated
Running composer update ycloudyusa/yusaopeny --with-all-dependencies
Gathering patches for root package.
Loading composer repositories with package information
Updating dependencies
Your requirements could not be resolved to an installable set of packages.

  Problem 1
    - drupal/hal[2.0.0, ..., 2.x-dev] require drupal/core ^10 -> found drupal/core[10.0.0-alpha1, ..., 10.1.x-dev] but these were not loaded, likely because it conflicts with another require.
    - ycloudyusa/yusaopeny 10.2.x-dev requires drupal/hal ^2.0 -> satisfiable by drupal/hal[2.0.0, 2.0.1, 2.x-dev].
    - Root composer.json requires ycloudyusa/yusaopeny 10.2.x-dev@dev -> satisfiable by ycloudyusa/yusaopeny[10.2.x-dev].