Show HN: Numr – A Vim-style TUI calculator for natural language math expressions

Show HN (score: 5)
Found: November 24, 2025
ID: 2496

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Show HN: Numr – A Vim-style TUI calculator for natural language math expressions Features:

Natural language math: percentages, units, currencies Live exchange rates (152 currencies + BTC) Vim keybindings (Normal/Insert modes, hjkl, dd, etc.) Variables and running totals Syntax highlighting

Stack: Ratatui + Pest (PEG parser) + Tokio Install: # macOS brew tap nasedkinpv/tap && brew install numr

# Arch yay -S numr GitHub: https://github.com/nasedkinpv/numr Would love feedback on the code structure—it's a workspace with separate crates for core, editor, TUI, and CLI.

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