llothar
Remember, for every paid SaaS, there is a free open-source self-hosted alternative
CAD. Free solutions compared to commercial ones (SolidWorks, Inventor, Fusion360, Onshape) are like comparing Photoshop to an open source Paint clone.
I think you may like Expeditionary Force series, there is quite a bit of what you are looking for.
I guess Asimov Foundation series would also be a good candidate for world building.
Damn it! Last year I upgraded to blockchain PC since my original Cloud-Native one was a disappointment.
I remember my first meal on my first visit to the US 10 years ago. It was Subway I think. I see a price advertised, but to my shock I paid almost double that. Fee for dining in, sales tax, too.
Crypto as currency = good.
Crypto as investment = bad.
First one is technological progress, the other is a Ponzi scheme.
The architecture can easily be open source - as long as repo is missing just the training data. Just like there are Doom engines that are open source, even though they do not provide WAD files, which are still copyrighted. The code is there, but it is somewhat useless without the data. Analogy is not perfect, but let’s assume it compiles to a single binary containing everything, maps included.
If ID Software gives you a compiled Doom with maps free to use it is freeware. If they open source the engine (they actually did), but do not release the WAD files as open source, the compiled game is not open source - it is still freeware.
It is not complicated really.