I developed programs on my computer and transferred them. There's some fantastic communities out there with all the resources and help you'll ever need [1]. I got my start working through this guide [2].

[1] https://www.omnimaga.org

[2] http://tutorials.eeems.ca/ASMin28Days/welcome.html

There's a USB adapter and software that lets you transfer files/scripts to and from the calculator. You can also record data over that port as well.