addon installation fail

I'm trying to install an addon and getting the message Pakage aerni/snipcart has a PHP requirement incompatible with your PHP version, PHP extensions and Composer version

My php version is 8.0.3, composer version 2.0.9

I tried with --ignore-platform-reqs but that failed at the end of the installation process.

Answered by Frederic Bouin!
>>>>>>> Answered <<<<<<<
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