ref:
- https://zig.news/lhp/want-to-create-a-tui-application-the-basics-of-uncooked-terminal-io-17gm
- https://invisible-island.net/xterm/ctlseqs/ctlseqs.html
- https://www.kernel.org/doc/html/latest/input/input.html
- https://andreasen.org/letters/vt100.txt
concepts:
- posix terminal interface
- terminfo
- character device
- tty: controlling terminal of a process, character file
- /dev/tty /proc/self/fd/1
- csi: control sequence introducer
- scrollable region