85 lines
2.8 KiB
Markdown
85 lines
2.8 KiB
Markdown
# 05 — Claude Code on Termux
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The reason this whole repo exists. Two non-obvious things break Claude Code on Termux:
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1. **Version ceiling: v2.1.112.** Starting v2.1.113, the CLI ships as a native binary (SEA) for `linux-x64`, `linux-arm64-glibc`, `linux-arm64-musl`, `darwin-*`, `win32-*`. Termux's `process.platform === 'android'` is not in that list. Even `--force`-installing the `linux-arm64` package fails because the binary needs `/lib/ld-linux-aarch64.so.1` or `/lib/ld-musl-aarch64.so.1`, neither of which exist in Bionic libc.
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2. **`/tmp` is hardcoded.** Claude Code writes to `/tmp/claude/...` for background tasks. Termux doesn't have a writable `/tmp`. `termux-chroot` exposes `/tmp -> /usr/tmp` to **all child processes** (which `proot -b` alone does not).
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## Install
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If you just want it working, run the top-level installer:
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```bash
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bash install.sh
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```
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Otherwise, the manual steps are:
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```bash
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# 1. Pin to the last compatible version
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npm install -g @anthropic-ai/claude-code@2.1.112
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# 2. Protect against the auto-updater (it can ignore env vars)
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chmod -R a-w $PREFIX/lib/node_modules/@anthropic-ai/claude-code/
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# 3. Make the wrapper available
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cp bin/clauded ~/.local/bin/
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chmod +x ~/.local/bin/clauded
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```
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## Settings
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`~/.claude/settings.json`:
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```json
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{
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"env": { "DISABLE_AUTOUPDATER": "1" },
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"skipDangerousModePermissionPrompt": true,
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"effortLevel": "xhigh"
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}
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```
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`DISABLE_AUTOUPDATER` is also exported from `bashrc.snippet`. Belt and suspenders — the auto-updater has been observed to ignore the env var in some releases, which is why `chmod -R a-w` is the real defense.
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## How `clauded` works
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```
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clauded
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└── termux-chroot
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└── claude --dangerously-skip-permissions "$@"
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```
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`termux-chroot` simulates a Linux FHS where `/tmp`, `/etc`, `/usr` etc. point to their Termux equivalents. Crucially, every child process inherits this view, so any background task Claude spawns also sees a working `/tmp`.
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## Updating safely
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```bash
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claude-update
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```
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This script:
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- Checks npm for the latest version.
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- Compares against the ceiling (`2.1.112`).
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- Refuses to upgrade past the ceiling.
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- Reapplies `chmod -R a-w` after a successful install.
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If a future Anthropic release re-supports Android (or restores the pure-Node fallback), bump the ceiling in `claude-update` and the README.
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## Authenticating
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```bash
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clauded
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# Inside Claude: /login
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```
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Subscription accounts and API keys both work. The OAuth flow opens a URL; long-press to copy it on Android and paste it in a real browser (Chromium, Firefox).
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## When the wheels come off
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See `TROUBLESHOOTING.md` for:
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- `EACCES: /tmp/claude/...`
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- `native binary not installed`
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- `claude --version` works but `clauded` errors
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- Sharp / image support
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- `proot-distro` escape hatch (lets you run newer versions inside a real glibc rootfs)
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