Redacted excerpt; full evidence withheld. $ cd && ls -la && cat README.md | head -200 exit: 0 or covariance backend: exact frontiers for diagonal-plus-low-rank covariances (factor models, RMT-cleaned matrices) in O(nk) memory via the Woodbury identity - Visualization of the efficient frontier using Plotly - Computation of the maximum Sharpe ratio portfolio - **LASSO regularisation path** through the same engine (`Lasso`), with the same fluent builder, general inequality constraints `Gβ ≤ h`, per-coefficient bounds (caps, and signs on any of the coefficients), and equality rows `Aβ = b` - Fully tested and documented codebase [excerpt truncated]