Someone who isn't me occasionally found it funny to add a microdose of amphetamine to an energy drink at lunch. But, yeah, long-term side effects can easily overweight any additional focus. Plus I'd say that what you gain in focus you can easily lose in creativity (possibly more a side effect of sleep deprivation than substances). On the other hand, microdosing psychodelics can sometimes generate a lot of creative energy (some of it even remains long-term) at the price of being slightly distracted for a while on the days when you dose. Also, getting stoned after work but way before going to sleep can work well for getting enough rest and getting your mind of the need to be focused. In general, I'd recommend the last part plus good dinner to everyone and also be more chill, work is not the whole of your life, go kiss girls or something.
There's also middle ground. OpenRC doesn't need those weird numbers while still being simple sysvinit/bash scripts-based system (it has a simple dependency system too). I'm not completely sure about `shutdown` level scripts having access to network though (too lazy to check), but it's still worth mentioning here.
JS is also very popular. Not for the same things as Python but in some aspects it's becoming modern PHP (which is still popular, if maybe aging somewhat kinda like Perl). But Python is definitely very popular for new back room stuff (source: long digital sweatshop career)
I personally think that lack of eye movement tracking is really the worst part. In real life you don't normally have to turn your whole head to look at things all the time, you often can just look using eye movements and focus. But ability to fully track that stuff and ways to provide some kind of depth perception are almost completely missing from the current VR tech. Methinks it's gonna take a lot of R&D before we're at that level of immersion.
You know, there are master key systems that do exactly this: you can have a master key that opens everything and special keys for just one of the locks. There are even grandmaster systems with some locks opening subsets of locks. I'm personally a huge fan of a certain Finnish manufacturer but there are many others. You can't usually put one of those compatible cylinders into you car, usually, and there are other limitations, but, still, even just for doors and lockers it's a great thing to have. Also, usually, those expensive cylinders are reprogrammable in case of a compromise and there are other security features (keys being impossible to copy is the one I like most).