I'm not sure if this is the right place for this but I have built a help desk ticket system in ASP.NET and it is hosted on a windows server on a domain where users can access it.

I need to be able to have an app similar to this whether it's .NET or JavaScript or whatever the best option would be.
It will be used on MAC computers and they are not on a domain. There are about 15 connected on wifi that file share on a cloud HDD.

What language can I write this app in and how to host it for it to be used on apple computers?

Thanks! Any help would be greatly appreciated.