Diwali is around the corner, which means it's the perfect time for light painting.
I love light painting, recently I got a gift of a hand held lamp that made me go back to it after some time. So, naturally, I spent a lot of time coding and deploying a webapp that let's you light paint without having to fiddle around with long exposures on your phone.
Just take a video of a moving light, like a firecracker, or a ferris wheel or use a phone flashlight to draw in the air and upload the result to the video stacker app below.