Add numpy to requirements.txt and configure flake.nix with zlib and
stdenv.cc.cc.lib to support C extension packages. Sets LD_LIBRARY_PATH
for proper runtime linking.
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>
Replace PS1 export with NIX_PROJECT_SHELL environment variable for
better integration with shell prompt configurations.
Also add trailing newline to flake.nix for proper formatting.
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>
0xWheatyz