Okay that kind of makes sense. There is a problem though, well three.
Imagine you live in a small town. Something happens (COVID for instance) and your town becomes popular and your land value goes up. Yesterday your house was worth 100k but now it's worth 500k+. Your saying those people should essentially be forced out of their homes? To be bought up by rich people?
Additionally this means only the super rich would be able to afford homes? This tax would essentially mean only the top 1% could have a home and basically give them a free for all on any land they want. Why would we want that?
Lastly if you increased land tax by that much landlords would have to increase rent prices to offset this? So even with a govt subsidy the renter is still the person paying this increase.
Honestly I'm intrigued by this idea but once you start thinking about how it would work it falls apart. There is probably some variation of this that could work. Maybe in cities they'll be an extratax if you don't build some sort of minimum housing? But this is already pretty similar to just basic property taxes.
Docker as mentioned above is great especially if you're going down the homelab rabbit hole. You'll find it really useful to get familiar with for future projects.
Another alternative is to install DietPi. It's an operating system for a raspberry pi. It has all these programs you mentioned with install scripts including docker and installing (and updating) is as easy as checking a box. Also has a pretty good community in case you run into an edge case.