Dion Kurczek (Glitch), from WL has a new site where you can write and test system algos. He sold WL to Fido a while back and has been working with them until recently.
New site uses C#, but there are "building blocks" to get things going if you don't know C.
https://www.quantacula.com/
New site uses C#, but there are "building blocks" to get things going if you don't know C.
https://www.quantacula.com/

