When you taught me how to knit and purl 4(5?) years ago, I don't think either of us ever expected I'd try colorwork, let alone steeking it.
Here is the little sweater as a pullover. The steek is a bridge of 5 extra stitches, marked by stripes where there is colorwork.
The crocheted reinforcement "ties" one leg of the center steek stitch to the leg of the stitch next to it, from the hem all the way up to the neckline.
One side done.
Then the other leg of the center stitch is crocheted to the stitch on the other side, from the neck back down to the hem.
Both sides done.
Between the legs of the crocheted center stitch is a ladder of horizontal purl stitches.
Those are the stitches that are very carefully, one at a time, snipped.
After a lot of breath-holding...
Now I just have to sew the edges under neatly and find a zipper that separates at the bottom! Then I will have a pretty little FO to show you!