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pl-N Polski jest językiem ojczystym tego użytkownika.
en-3 This user has advanced knowledge of English.
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I'm Matma Rex, full name Bartosz DziewońskiMediaWiki developer hailing from Polish Wikipedia, global interface editor.

I work for or provide services to the Wikimedia Foundation, as a member of the MediaWiki Platform team (formerly also the Editing team and briefly the Multimedia team), but this is my personal account. Edits, statements, or other contributions made from this account are my own, and may not reflect the views of the Foundation.