OK, not a big Fusion360 person. I have used Vectric Aspire, Estlcam, and Easel. In digging around on the forums, and in a lot of places, and here, ArtCAM used to be popular with a lot of people, but was discontinued.
Some people had asked about Carveco Maker and its related products, but alas no Marlin Post Processor. At $15/mo. cheaper than Easel Pro.
After doing some digging about in various sites, forums, and my rear areas, I believe I have found the solution. Took some effort, editing, and other fun.
I Posted the file to the Facebook group, mm format. I have used this in Carveco Maker as the post processor. The resulting file can be read by Estlcam and Repetier as valid gcode. Still have to try it with some foam in the next few days.
Paste it into C:\Program Files\Carveco\postp. It will probably say you need admin permission. You can figure out that yourself.
Test away, I guess those years maintaining Netware servers, Linux beta testing, and just playing around has came in handy after all.