Migrate spell checking from PySpelling/aspell to cspell#562
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SeanTAllen merged 1 commit intomainfrom Feb 22, 2026
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The existing aspell-based setup requires constant tending of the custom wordlist for standard technical terms it doesn't recognize. cspell bundles 50+ technical dictionaries that already cover most of these, reducing the custom wordlist from 90 entries to 23. The en-gb dictionary is included alongside en_us so both US and UK spellings are accepted — the docs use UK spellings in several places (deserialise/finaliser for serialisation concepts, parameterise in type alias docs).
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The existing aspell-based setup requires constant tending of the custom wordlist for standard technical terms it doesn't recognize. cspell bundles 50+ technical dictionaries that already cover most of these, reducing the custom wordlist from 89 entries to 23.
The en-gb dictionary is included alongside en_us so both US and UK spellings are accepted — the docs use UK spellings in several places (deserialise/finaliser for serialisation concepts, parameterise in type alias docs).