Termux Environment

Purpose

Build a small factual snapshot so later decisions rest on measured facts, not on assumptions about the phone, the shell, or the distro.

When to use

• A fix depends on Android version, CPU architecture, free space, or installed toolchains.
• It is unclear whether the shell is native Termux, a proot distro, another Android shell, or not Android at all.
• Any other skill in this pack says to capture the environment first.

When NOT to use

• Plain text questions, or a command whose result does not depend on the device.
• Before every command. Cache the snapshot; refresh only after a package upgrade, entering or leaving proot, or reinstalling Termux.

Preconditions

Read-only shell only. No root, network, or Termux:API required.