I got kind of overwhelmed with the complexity of the ingredients, so didn't finish the cooking until today.
Unfortunately the local store didn't have cardamom or coriander, but I tried to offset that a bit by combining the two recipes. And then, instead of curry leaves I used a mix of basil and cilantro.
One thing I was somewhat surprised by is that the cooking times didn't seem enough to thoroughly cook everything in to a proper stew. I suspect a slow cooker might be the way if I try this again. Or maybe blending some of the ingredients at some point via food processor.
Just after I was all done I had a portion over some greek yogurt, and found it 'okay.' A couple hours later and it unsurprisingly tastes a lot better because of the spices having time to express themselves more. Another issue is that most of my spices weren't all that fresh, so it's likely I needed to use more.
Another idea would be to add some kind of meat, like chicken or lamb. There's something intriguing about this dish, but the version I'm doing needs adjustments.