Rationale#

Independently reproduced 2026-08-27 on a third, different machine (zara-ZenBook-UX482EG, Ubuntu 24.04.2, X11 not Wayland). Distro Wine 9.0 -> WineHQ winehq-stable 11.0, fresh WINEARCH=win32 prefix, latest client KakaoTalk 26.7.1.5263: real 390x640 login window, correct Korean rendering, stable, no Themida window. Two deltas worth folding in: (1) winetricks -q win10 is unnecessary, plain wine reg add of CurrentBuild=19045 / CurrentVersion=10.0 / ProductName + HKCU Software Wine Version=win10 suffices and is faster; (2) the installer accepts /S for a fully silent ~12s install, which makes the recipe runnable from a non-interactive agent context. Also note apt remove of distro wine pulls playonlinux with it, and any leftover /etc/hosts kakao update-blocks from the older pin-and-block recipe must be removed. Caveat not reproduced here: the note reports Themida no-shows on roughly 1 in 3 launches; every launch on this machine succeeded.