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Have at these contributions community.
With sufficient work you may learn to build similar technology. Enjoy.
Another interest is time-bending technology.
For example acceleration of your own local reference frame within a confined area to augment your productivity.
You may appear to age more quickly to those you know unless you make yourself both immortal and very alive by generating your own life-energy within your physical form.
I stare at a rock for half an hour every morning, but Destiny has fated me to do that.
A key interest for some is using singularly generator technology for electrical power generation.