How about "being aware of what your abstraction layers cost, and being palpably aware of every needless contortion you create"
know what everything does.
call if from up on high? fine, but only if you literally can trace that high level call down to the machine code it emits :D C compiler suites can do that no problem
"gcc -S mycode.c"
For an appropriate dose of humility, so that you know that I'm not elevating myself here, but pointing out reality, check out GCC or LLVM source code.
Something like Lua or Berkeley DB can be defined inside your program in a matter of a few hundred lines of included library code, but what does it DO?
Bringing SQL and a database on board is rather odd for a desktop app, wouldn't you say? Configuration should be flat files, ideally, or managed via the apps gui, in which case an embedded database like Berkeley DB is usually more relevant. Your mention of SQL smacks of "all things are nails, always use hammers", to me at least.
Have you worked with the actual computer itself in any capacity? I mean ASM, C, C++, etc, but essentially being aware of what an ABI is, what types actually are (memory shape patterns so we can define physical memory in terms of our data structures)
Javascript is not computer programming, but rather programming the browser, or it's disembodied transplanted javascript engine. the animal is completely different from physical memory and actual instructions.
Computers essentially manipulate memory structures.
The further away from this you get, the more likely that your abstractions will be leaky, not fit what computers are actually DOING with your data, and this results in beautiful script driving janky machine code.
Seriously, while we all like to pretend that everyone is equally special, let's recall that someone is a VBscript for Word expert, and that this is basically a virtual machine that itself is just defined inside someone elses program.
Technological stacks are defined in terms of semi-arbitrary made-up things other people made-up and that you just need to know how to use.