If you’re using Laravel Cashier, you may have had an issue deploying to Fly. You may see something like this
#10 0.606
#10 0.606 Problem 1
#10 0.606 - moneyphp/money is locked to version v4.0.5 and an update of this package was not requested.
#10 0.606 - moneyphp/money v4.0.5 requires ext-bcmath * -> it is missing from your system. Install or enable PHP's bcmath extension.
#10 0.606 Problem 2
#10 0.606 - moneyphp/money v4.0.5 requires ext-bcmath * -> it is missing from your system. Install or enable PHP's bcmath extension.
#10 0.606 - laravel/cashier v13.15.1 requires moneyphp/money ^3.2|^4.0 -> satisfiable by moneyphp/money[v4.0.5].
#10 0.606 - laravel/cashier is locked to version v13.15.1 and an update of this package was not requested.
I added php${PHP_VERSION}-bcmath
to my Dockerfile and it seems to have worked.