While I love the concept, the fact the package manager is different from the common ones, and some of the packages they do have are outdated, means attempting to use this for my use case will probably result in a painful experience.
The last distros I've used that didn't really have their own package managers were Slackware (it is just a tarball) and PuppyLinux (adopted from slackware or debian).
Anyway, Slitaz is here https://repology.org/repository/slitaz_cooking
I don't think outdated packages are that big of a deal, as long as they work in the first place.
I can't access some websites like Twitter, Reddit, and Slack, but I consider that to be an advantage.
It came with this one installed, and I'm gonna let it stay for the time being.
Also, the installed browsers are already a bit on the slow side, and I can imagine they would only get slower if I upgraded them.
I verify this in the Network Monitor pane.
Otherwise, I do not consider them trustworthy.