# nerdctl build -t alt 
ERRO[0000] `buildctl` needs to be installed and `buildkitd` needs to be running, see https://github.com/moby/buildkit  error="2 errors occurred:\n\t* failed to ping to host unix:///run/buildkit-default/buildkitd.sock: exec: \"buildctl\": executable file not found in $PATH\n\t* failed to ping to host unix:///run/buildkit/buildkitd.sock: exec: \"buildctl\": executable file not found in $PATH\n\n"
FATA[0000] no buildkit host is available, tried 2 candidates: 2 errors occurred:
        * failed to ping to host unix:///run/buildkit-default/buildkitd.sock: exec: "buildctl": executable file not found in $PATH
        * failed to ping to host unix:///run/buildkit/buildkitd.sock: exec: "buildctl": executable file not found in $PATH

Нужен пакет https://packages.altlinux.org/ru/sisyphus/srpms/buildkit/, который есть только в сизифе.