📖 Origin of the Hanja
The hanja "開" depicts two hands (廾) opening a gate (門). "發" shows two hands (癶) drawing an arrow from a bow (弓) — to launch, to bloom. "者" means person who does. 開發者 = "one who opens the closed and makes it bloom". Korea's IT origin point is 1985, when Lee Chan-jin (24, Seoul National University student) created the Hangul Word Processor — the seed of Korea's global IT identity.
"The first character of 開發者 is "to open" (開). Not writing code, but opening possibility — that is the essence."