Friederich Wilhelm Sering (November 26, 1822 - November 5, 1901) was director of St Paul in Strasbourg, where there is a fine and historic Walcker organ.
I don't know if he played this organ, and I can find no other information about him, and there are only two pieces composed by him - the one uploaded here, and a fairly large-scale "Toccata in E-flat major, Op. 13".
"Nun danket alle Gott" features the famouse tune, but is a version that is slightly different from the one I know.
The "Choral und Configuration" begins with a straight-forward harmonization of the chorale, before preceding into the "configured" part, which features grandly rolling pedal scales, and has the feel of a carillon pealing above a solemn but jubilant procession.
I must confess that I found this piece a lot harder than I had anticipated. There is just something "awkward" about it, but that's probably just me.
However, if you like it, you'll find this will make a wonderful new postlude for you, whenever you sing this great chorale.
The perspective you hear is from the "rear" of the church (actually the altar end). In other words, the organ is at the greatest distance from the listener.
The score is attached.
Whether or not you are in the United States and will celebrate Thanksgiving on Thursday, I wish you joy, peace, and a heart ready to give thanks!