ofn-text-along-path issues

[skyeisqueer]

I've been trying to set up the ofn-text-along-path plugin/extension for the past few days, and it's just not showing up in GIMP. I assume I've done something horribly wrong, but I have no idea what. In the various forum posts I've looked at about it, and the docs that came in the .zip, it should show up in the path right click menu -> Tools -> Text Along Path..., but the Tools dropdown just isn't there. I'm assuming I've installed it wrong, or there's a dependency I'm missing, or something, but I'm just not sure what it is. It could be that I've done something else horribly wrong.

There's also always the possibility that its NixOS's fault, but I highly doubt it. The attached screenshot should contain all relevant information, but if there's something missing, I can provide it.