Oh I see!

To be fair, my answer there was also back when we were playing 5e. But I felt ok sharing it here because the general story was system agnostic, dealing with how puzzles with a reward are cooler than puzzles that block story progress, and reinforcing the cool idea you brought up about using custom homebrew spells as reward items.

I hope we're more chill here about the, uh, familial relationship between games than they are on Reddit.

...likewise!..