Edit dates:
Started: February 28, 2018.
Updated: November 28, 2020.

CSS {
	Flex {
		align-content
		align-items
	}
},
Email {
	Email Spoofing Avoidance {
		https://documentation.mailgun.com/en/latest/quickstart-sending.html#add-sending-tracking-dns-records#add-sending-tracking-dns-records,
		http://www.openspf.org/Introduction,
		http://www.dkim.org/#introduction
	}
},
UNIX {
	readline {
		In macOS there is an "equivalent": editline,
		https://www.gnu.org/software/termutils/manual/termcap-1.3/html_mono/termcap.html#SEC1,
		https://tiswww.case.edu/php/chet/readline/rltop.html,
		https://www.freebsd.org/cgi/man.cgi?query=editline&sektion=7&apropos=0&manpath=FreeBSD+12.2-RELEASE+and+Ports
	},
	bash {
		Includes the readline GNU library in its source,
		CTRL-C emitting the SIGINT signal is not on bash's domain, but on the line editing domain (readline),
		https://tldp.org/HOWTO/html_single/Text-Terminal-HOWTO/
	},
	peripherals {
		RS232,
		DB9,
		epoll,
	}
}

Jonathan Ginsburg.