Qubes OS new templates?

Is it easy to make a template for Linux distros that don鈥檛 have a rpm yet? like Slackware, Open SUSE, Alpine, Knoppix, etc? I have not found a template for any of these and I would LOVE to try if it鈥檚 not to hard. :slight_smile:

Note: I saw this [Contents/building-non-fedora-template.md at master 路 Qubes-Community/Contents 路 GitHub] and I think it is out dated and is hard to follow. Please let me know if there is a updated version.