[Bug]: `Illegal instruction` when importing `zvec` on x86_64 Linux (WSL2) - crashes before any query/print

[Mohammed-Tabiza]

Description

Summary

import zvec crashes the Python process with Fatal Python error: Illegal instruction.
Because of this, demo code never reaches print(results).

Minimal reproduction

uv run python -X faulthandler - <<'PY'
import zvec
print("ok")
PY


### Steps to Reproduce

```python
uv run python -X faulthandler - <<'PY'
import zvec
print("ok")
PY

Logs / Stack Trace

## Minimal reproduction


uv run python -X faulthandler - <<'PY'
import zvec
print("ok")
PY

Operating System

x86_64 Linux (WSL2)

Build & Runtime Environment

Python 3.10, Python 3.12, Python 3.14

Additional Context

• I've checked git status — no uncommitted submodule changes
• I built with CMAKE_BUILD_TYPE=Debug
• This occurs with or without COVERAGE=ON
• The issue involves Python ↔ C++ integration (pybind11)

[richyreachy]

Thanks for reporting. Looks similar to #92

Currently, can use source-build by following: https://zvec.org/en/docs/build/