A question:
Some VPS hosting providers let you upload a custom OS image to their servers. Was NiceOS created for such a scenario? For example, if you wanted to distribute a VPS image to customers so they could self-install a web app. Would NiceOS be suitable for a task like this? (Example: NiceOS + PHP + web server + database - all pre-configured. )
Self-hosting remains complicated and impossible for non-technical users. No-one appears to have solved this problem (Docker, Cloudron, Sandstorm are not easy for non-technical users).
I can see that a minimalist VPS OS image configured around a single web app might make self-install a tad bit easier.
By the way, you should add the text 'Show HN:' to the title of your post so others find it more easily.
Good luck with you project!