I've created an online trilateration calculator using Desmos 3D, which I only just learned about. I've always loved Desmos, and in the past, I've had to do some pretty silly workarounds to get things to work in 3D on there, but it turns out they released a 3D mode about two and a half years ago. https://axelstewart.neocities.org/other/trilateration

I did another folk song on guitar! https://www.youtube.com/shorts/cKi8aRJAUP8 It's called Lamplighting Time in the Valley. I've spelled it how I found it first - a video of a paper roll for a player piano, with the lyrics written on it, titled "Lanplighting Time in the Valley" - but this video has since disappeared from view. I can no longer find it. Perhaps I misremembered it, but it was a very powerful thing.

New song: https://www.youtube.com/shorts/jvTo9pne0p0

Here's an unlisted YouTube video of Paul Brady playing Mary and the Soldier https://www.youtube.com/watch?v=z6XPuwIz298

I'm going to be posting more links here, I think.