Windows doesn't automatically fall back to the baseline binary on CPUs without AVX2

[MaelllDev]

Environment

• OS: Windows 11
• CPU: Intel Core i5-3570 (AVX, no AVX2)
• freebuff: 0.0.115
• Node: v24.16.0

Problem

Running:

freebuff

downloads the win32-x64 binary and immediately crashes with:

Download complete! Starting Freebuff...
============================================================
Bun v1.3.14
CPU: sse42 avx
Features: no_avx2

panic: Illegal instruction

The metadata confirms that the downloaded target is:

{
  "version": "0.0.115",
  "target": "win32-x64"
}

Expected behavior

The launcher should automatically detect the Illegal instruction crash and download the win32-x64-baseline binary, since the source code already contains a fallback mechanism for this scenario.

Workaround

Forcing the baseline binary manually fixes the issue:

set FREEBUFF_BINARY_TARGET=win32-x64-baseline
del "%USERPROFILE%\.config\manicode\freebuff.exe"
del "%USERPROFILE%\.config\manicode\freebuff-metadata.json"
freebuff

After doing this, Freebuff downloads the baseline binary and runs correctly.

Notes

It looks like the automatic fallback to win32-x64-baseline is not being triggered on Windows, even though the code appears to support it.

[codebuff-team]

Marking this stale - there has been no activity here for 52 days. It will close in 7 days unless someone comments.

This is backlog upkeep, not a verdict on the issue. A single comment keeps it open, and anything closed this way can be reopened.