Just wanted to post a Claude Skill I whipped up to help you manually edit your red line for a goal. In case it is helpful to someone else.
While I was messing around with Beeminder as I am getting into it I found myself getting annoyed while using the Graph Editor to manually edit my line for a Goal. It is a bit of a weird one that I am kinda (ab)using a stay at zero goal.
You can see the full source here: GitHub - giodamelio/beeminder-api-experiments: Some experiments with the Beeminder API · GitHub
Thanks so much to the Beeminder folks for making the graph editor open source. I shamelessly steal a bunch of code from it and it lets me render pretty previews of what a change is going to be before applying it, just to be safe.