I'm getting Failed to upload keys: I/O Error: No such file or directory (os error 2) when I try to upload keys. The key block is:

          deployment = {
            keys."myservice.secret" = {
              keyFile = /full/path/to/secrets/myservice.secret;
              uploadAt = "pre-activation";
            };
          };

Am I doing something obviously stupid? File is in the ./secrets dir by the flake, and owned by the same user

In reply to @zhaofeng:zhaofeng.li
Yeah, on non-NixOS hosts the Nix binaries aren't in the PATH set up by sshd/pam. It's a long-standing issue: https://github.com/NixOS/nix/issues/1078