Composer Install without PHP-Imap Extension

Your software
My PHP version is 7.4.29 :

Updating/Installing Errors
I am: Installing
Installing via: Command Line

These errors are showing in the installer :

Your requirements could not be resolved to an installable set of packages.

Problem 1

  • Root composer.json requires mautic/core-lib 4.3.1 → satisfiable by mautic/core-lib[4.3.1].
  • mautic/core-lib 4.3.1 requires ext-imap * → it is missing from your system. Install or enable PHP’s imap extension.

Problem 2

  • mautic/core-lib 4.3.1 requires ext-imap * → it is missing from your system. Install or enable PHP’s imap extension.
  • mautic/theme-trulypersonal 4.3.1 requires mautic/core-lib ^4.0 → satisfiable by mautic/corelib[4.3.1].
  • Root composer.json requires mautic/theme-trulypersonal 4.3.1 → satisfiable by mautic/theme/trulypersonal[4.3.1].

Your problem
My problem is :
I would like to move to composer in order to prepare for future Mautic releases as well as maintaining 3rd party dependencies. There is no php-imap extension available on Amazon Linux 2 AMI. Surely there must be some way to create the composer package without an extension that Mautic’s website lists as optional.

Steps I have tried to fix the problem :
Adding ‘–ignore-platform-req=ext-imap’ to my composer create command. This appears to work at first but ends with the following output.