According to upstream, you can install helm from apt on Debian: https://helm.sh/docs/intro/install/#from-apt-debianubuntu
> Members of the Helm community have contributed a Helm package for Apt. The link points to: https://helm.baltorepo.com/stable/debian/packages/helm/ The package source apparently is: https://github.com/BaltoRepo/helm-linux-packages They package it with fpm: https://fpm.readthedocs.io/en/latest/ which is not (and likely won't ever be) in Debian: https://bugs.debian.org/688896 P.