The third review of #64 (hq issue 339): an ExecStart continued over lines, a quoted path, a variable from Environment= or EnvironmentFile= across the unit and its drop-ins, dockerd's --config-file and podman's TOML literal strings each hid a data root from the guard. The running runtimes are now asked first (docker info, podman info) on a runner of the guard's own, and the files are read beside them in all those forms.