..

[Shinjgami]

...

[sylirre]

Termux uses English for UI and packages:

• https://github.com/termux/termux-app/blob/8629e632fcb95da272221be327db653fb24befe9/app/src/main/res/values/strings.xml

• termux-app/termux-shared/src/main/java/com/termux/shared/shell/command/environment/AndroidShellEnvironment.java

  Line 36 in 8629e63

  environment.put(ENV_LANG, "en_US.UTF-8");

Other languages aren't really supported.

Make sure you use official release from F-Droid or GitHub, see https://github.com/termux/termux-app#installation for details