when making TUI program, use "\x1b[?1049h\x1b[H" to switch to another term buffer and "\x1b[?1049l" to switch back. This way you leave user's terminal intact

you can start simple web server with "python3 -m http.server", great when making static websites

use "z=" in vim to start spell checker

run "setxkbmap -option ctrl:nocaps" to replace capslock with additional ctrl key. you can find (way) more options in "/usr/share/X11/xkb/rules/xorg.lst"

the "interrobang" character (‽) exists

You can make nvim nvim your manpager with: export MANPAGER='nvim +Man!'

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