Weld Support Bracket to Post

What happens here

The presenter prepares to weld a piece of L-shaped steel, salvaged from an old crate, to a new metal post using a Klutch brand welder from Northern Tool. This bracket will serve as a support foot to prevent the post from twisting in the ground once set in concrete. He initially attempts a quick weld without a helmet, but then pauses to retrieve appropriate safety gear.

Goal: Attach a non-twist bracket to the new post