LTX 2.3 training - any experience out there?

Hey all, I was playing around with LTX 2.3 today and I sorta have the bug to fine-tune it or make some Loras now. Are there any guides or best practices for dataset design? Or are people just grabbing frames fed through a captioner and then pairing it with stt / caption files? I make audio models mainly - but I want to run some experiments now with video and saw it can be finetuned. Just wanted to check if anyone has tackled it or if there are any pipelines / repos that streamline things a bit. bonus points if someone can confirm it can handle a multi gpu train as well. thanks in advance.