DeterminateSystems/nix-installer-action defaults to determinate:true
which tries to auth with FlakeHub via GitHub JWT. We don't use any
FlakeHub flakes, so disable it — skipping the auth entirely.
Separate deploy job failed because it used ls to find store paths
by name, finding OLD local paths instead of the freshly copied CI
paths. Now each service builds, copies, and updates its profile
in a single job using the exact store path from the build output.
No more guessing which path is the right one.
- Fix nix copy URL: ***@ → $VPS_USER@
- Store path from build output, passed across jobs
- Deploy job waits for all builds via needs: build
- SSH key setup in its own step, guarded by main branch
- Only deploy on main branch pushes
- Remote deploy script fetches from VPS nix store
