CLI for querying Hong Kong MTR point-to-point journey times with fuzzy station matching.

poros "Quarry Bay" "Kowloon Bay"   # 13 min — Route: Quarry Bay → [Island] → Kowloon Bay
poros --matrix                      # Full N×N time table (TSV)
poros --refresh                     # Re-fetch from official MTR API

Fetches station data from the MTR Open Data API and journey times from the official MTR journey planner endpoint. Results are cached locally at ~/.local/share/poros/cache.json.

Route calculation uses BFS with transfer minimisation across all 10 MTR lines.

cargo install --path .

Requires Rust 2024 edition.