PHP Fatal error: Allowed memory size of 1073741824 bytes exhausted (tried to allocate 16777216 bytes)

I ran composer install on my 16 GB Mac Book Pro, and I got this

 ⚡️  distributor-portal  composer install                                                                                                       
Loading composer repositories with package information
Updating dependencies (including require-dev)                      
PHP Fatal error:  Allowed memory size of 1073741824 bytes exhausted (tried to allocate 16777216 bytes) in phar:///usr/local/bin/composer/src/Composer/DependencyResolver/Solver.php on line 220

Fatal error: Allowed memory size of 1073741824 bytes exhausted (tried to allocate 16777216 bytes) in phar:///usr/local/bin/composer/src/Composer/DependencyResolver/Solver.php on line 220

Check https://getcomposer.org/doc/articles/troubleshooting.md#memory-limit-errors for more info on how to handle out of memory errors.⚡️  distributor-portal 

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Questions

How would one go about and debug this further ?

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I'm open to any suggestions at this moment.

Any hints/suggestions / helps on this be will be much appreciated!

via Chebli Mohamed