Thanks. I’ll try the duct tape route. I only asked as I didn’t want to run out to buy some rim tape if I only need an inch or two to cover the hole created by the metal shard.
I never tried truing the wheel yet as it’s been pretty straight as far as I can tell. Really odd though how the metal poked out from the hole. From what it appeared, it looked like a small part of the edge of the hole where you access a spoke “tore” upwards almost like the spoke or something else pushed it up. I bought this bike a while ago from another guy so have no service history of the wheel.
I will give the duct tape method a shot. I just didn’t want it to possibly shift around later, which is why I asked.