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   IronCalc – Open-Source Spreadsheet Engine (ironcalc.com) 3 points by kaathewise 2 hours ago
A spreadsheet engine. It's a React app with a Rust backend, but it impressed me how snappy it was[0]. Of course, it's not nearly as feature rich as Google Sheets, not to mention Excel.

[0]: https://app.ironcalc.com/ by kaathewise 2 hours ago

"backend" seemed to imply it was contacting some server, but https://github.com/ironcalc/ironcalc#early-testing claims (and the network tab confirms) it is just Rust compiled to wasm, no "backend" required

MIT or Apache 2 (player's choice) if anyone else has grown deeply suspicious about any "open source" HN headlines of late by mdaniel 2 hours ago