There’s lots of slow ways to seed and chop a pepper, and a couple simple ways. I like this one.
Start by cutting off the top as shown above. You want to cut as close as possible to the base of the stem.
If you got it just right, you’ll be able to pop the stem out with your thumb, and then pull out the membrane with the seeds.
Cut it in half and trim out more of the membrane.
Some peppers have four lobes, some have six. Separate all the lobes so you can get the last of the membrane.
Slice the pieces lengthwise.
And that’s it.