[BUG] Continue support for older CPUs via npm

Preflight Checklist

• [x] I have searched existing issues and this hasn't been reported yet
• [x] This is a single bug report (please file separate reports for different bugs)
• [x] I am using the latest version of Claude Code

What's Wrong?

Bug Description
My Chromebook's CPU is an Intel Celeron N3350 with no AVX support. So, ran into issue while installing, so re-installed it using npm.

Environment Info

• Platform: linux
• Terminal: xterm-256color
• Version: 2.1.15
• Feedback ID: a058ed73-08e0-4164-8358-5622ac4ed2ae

What Should Happen?

Please continue support npm for older CPUs

Error Messages/Logs

Bun v1.3.6 (d530ed99) Linux x64 (baseline) Linux Kernel v6.6.76 | glibc v2.36 CPU: sse42 popcnt Args: "claude" Features: Bun.stderr(2) Bun.stdin(2) Bun.stdout(2) fetch(13) jsc no_avx2 no_avx spawn(18) standalone_executable Builtins: "bun:main" "node:assert" "node:async_hooks" "node:buffer" "node:child_process" "node:constants" "node:crypto" "node:domain" "node:events" "node:fs" "node:fs/promises" "node:http" "node:https" "node:module" "node:net" "node:os" "node:path" "node:path/posix" "node:path/win32" "node:perf_hooks" "node:process" "node:querystring" "node:stream" "node:timers/promises" "node:tls" "node:tty" "node:url" "node:util" "node:zlib" "node:worker_threads" "undici" "ws" "node-fetch" "node:inspector" "node:http2" "node:diagnostics_channel" Elapsed: 9689ms | User: 5671ms | Sys: 2812ms RSS: 1.21GB | Peak: 0.41GB | Commit: 1.21GB | Faults: 42 | Machine: 2.89GB CPU lacks AVX support. Please consider upgrading to a newer CPU. panic(main thread): Illegal instruction at address 0x4001FB4 oh no: Bun has crashed. This indicates a bug in Bun, not your code.

Steps to Reproduce

claude install in Intel Celeron N3350 or earlier

Claude Model

Opus

Is this a regression?

I don't know

Last Working Version

_No response_

Claude Code Version

2.1.15 (Claude Code)

Platform

Other

Operating System

Ubuntu/Debian Linux

Terminal/Shell

Xterm

Additional Information

_No response_