To give some detail, it’s /var that is writable, and mutable directories will have symbolic links pointing to subdirectories of /var:
Последние новости
，这一点在搜狗输入法2026中也有详细论述
19:47, 27 февраля 2026Мир。关于这个话题，91视频提供了深入分析
Jim Lovell, Apollo 13 astronaut, dies aged 97