No need for such extremes, it would already be enough to stop using Electron crap, or React on the terminal.
Followed by actually reading a data structures and algorithms book.
Finally, using compiled languages instead of interpreted ones.
No need to count bytes to fit into 48 KB.
I disagree. I use all of those because they let me get work done faster. I've shipped Electron apps to clients that are effectively just a wrapper around a command line app because (1) I knew the client would much prefer a GUI over a command line (2) I was on Mac and they were on Windows and I knew I could more trivially get a cross platform app (3) I could make the app look good more trivially with HTML/CSS than I could with native (4) Iteration time is instant (change something /refresh). The clients don't care. Interpreted languages are fine.