Since I’m somewhat of a simpleton… isn’t that how pipelines actually work? The only difference being, they’re all (scripts) available from a centralized system and triggered i.e. with webhooks?

Instead of a local script on a server, the system opens i.e. a ssh session and runs the script step by step remotely?

So is that the joke or am I missing something?

Lemmy (pun intended) answer my own question here: Yes, it’s relative hight along the river’s centerline: https://opentopography.org/blog/new-package-automates-river-relative-elevation-model-rem-generation

Please tell me more about “Relative Elevation Model”. Are those elevations in the river’s surroundings relative to the river’s water surface height? Or something else?