We're so happy you mentioned the command line! We are really focused on building ML tools with an interface that programmers are most comfortable with -- a lot of devs don't want to use jupyter notebooks. We've considered building a whole TUI showing all kinds of cool UI like CPU utilization, memory usage, training loss etc while training :)
I'm really more a GUI person tbh but when I'm figuring out a new thing it's nice to play with a working binary before trying to write any code. I don't need to deal with ML so while I find it interesting and cool I've avoided getting very deep into it because it looked like a huge work/resource commitment just to indulge my curiosity. I'm really happy to have something simple I can just mess around with and figure out if/how I want to explore further. Thanks!
Thanks for the kind comment. We spent a lot of time trying to make the website feel hacker friendly, so programmers know that tangram is not made only for someone with a PhD.