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Is self-hosting LanguageTool worth it?

languagetool.org LanguageTool - Online Grammar, Style & Spell Checker

LanguageTool is a free grammar checker and paraphraser for English, Spanish, and 30 other languages. Instantly check your text for grammar and style mistakes.

LanguageTool - Online Grammar, Style & Spell Checker

I'm thinking of either self-hosting LanguageTool or buying the premium version. What's the pros and cons of each decision?

I'm comfortable in self-hosting stuff. Nevertheless, I don't want to have much hassle building the language rules, grammars, and dictionaries. Premium pricing seems tempting (much affordable than Grammarly), but I do want to own my data and privacy!

For more context, I write in English most of the time. I don't care about other languages.

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