The platform is built on REE (Ruby Enterprise Edition), a version of Ruby 1.8.7 that works a little faster with Passenger / Rails Version is 2.3 LTS.
The system is quite stable at the moment but will at some point need to be updated to the newer versions of Ruby / Rails.
The system also requires updating of the payment gateways (Realex and Stripe) to the new 3dsecure and Visa equivalent and also new gateways added.
Ongoing maintenance as well as improvements and customisations will be required on an ongoing basis.
We are looking for a long term relationship to enable us to continue to offer the system to new clients.
An example of the system can be seen here in operation:
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Some source code examples can be provided once further discussions take place.