request: subuser slackbuild for slackware

I've read about a program called "subuser". Nothing to do with underwater sea-craft nor BDSM. From the web site:
Quote:

Subuser turns Docker containers into normal linux programs Right now I'm editing this file in vim. vim is not installed on my computer though. It is installed in a docker container. However, in order to edit this file, all I had to do was type: Code:$ vim README.mdSubuser turns a docker container into a normal program. But this program is not fully privileged. It can only access the directory from which it was called, not my entire home dir. Each subuser is assigned a specific set of permissions,

This sounds fascinating to me. I've got docker installed in slackware and it works (as a test I was able to run bash from ubuntu) but I've not been able to figure out how to do anything of interest to me in docker (things like running debian's wings3d (a program notoriously difficult to build) in slackware).

I attempted to make a slackbuild and failed.

Has anyone else made a slack-build for subuser? Thank you.