yes, I also have an issue during build:

{ "message": "install mise packages: caddy", ... }

do you have this message as well?

no, i dont, i see only those:
using build driver railpack-v0.15.1

╭─────────────────╮

│ Railpack 0.15.1 │

╰─────────────────╯

↳ Detected Node

↳ Using npm package manager

Failed to resolve version 24.12.0 of node

nodejs set the latest LTS few days ago - 10th dec

tried changing the node versions in package.json and nixpacks, but didnt help me

I'm also getting this issue. Builds about 30 minutes ago worked fine, with no new changed introduced.
Railpack + Metal build.
It affects all my services and environments both on node 24 and node 22.

Yes exactly, i got the first issue approx 50mins ago, no environmental changes made in my projects too.

Looks like some issues with Railpack, deployments until yesterday went fine, all that are done today are failed

same problem

Same error, I tried specifying exact versions of node and the error persists, without any changes to the code.

Same on node 22

upvote the original post, so the team sees it asap

also seeing it on node version 22, and i'm using bun

same

working now

managed to deploy, all good

failing on image build.

Railpack uses a tool called Mise to add various packages into your container images and the service that provided the up-to-date versions of those packages went down for a bit today. It should be resolved now, try redeploying your service.