Sorry I did not mean in connection with lean.io. I just meant of general interest, for example https://www.elitetrader.com/et/threads/multicharts-automated-trading.370211/#post-5693036
That is true and actually lean.io is the opensource engine at the heart of quantconnect. I am sure that having all of Quantconnect's Cloud based data and backtest capabilities is valuable to many people. I may use it but I am looking now to see if I can find something with a lighter footprint if possible.
It was a toss up between MT5 and the other suggestions, decided on QuantConnect as a good starting point to begin my algorithmic trading journey. I'm enjoying the suggestion and this platform, the introductory training videos are great; "TradeOptionsWithMe" YT Channel https://www.youtube.com/playlist?list=PLtqRgJ_TIq8Y6YG8G-ETIFW_36mvxMLad
Tradestation for proof of concept and simpler strategies, exactly, it provides roll forward and roll backward options, but as always everyone will look for something else making it overly complex and wondering why they spend more time debugging than trading.
My impression with Tradestation is that it uses a proprietary language (easy language?) which has it's limitations. If our goal is in the direction of Ai/ML functionality, easy language doesn't really support that does it?
"Tradestation for proof of concept and simpler strategies" - Ai/ML is not classed as proof of concept nor a simpler strategy, funny comment though, actually all programming languages cover AI but you need to know what you are doing which few do, so they don't
I’m seeing examples of co-pilot writing python code. There’s also some open-source repos making available to run a version of chatGPT locally and use one owns training data. I used to write software decades ago and have been out-of-the-loop and haven’t really kept up with it. However, some chatGPT-4 examples have been inspiring to work with code again.
I found out that NinjaTrader allows you to write your code in real C++ in Visual Studio, which is attractive to me as a starting point. NinjaTrader seems to support perhaps more clearing broker APIs than anything else, including Rithmic.