||Polski jest językiem ojczystym tego użytkownika.
||This user has advanced knowledge of English.
I'm Matma Rex, full name Bartosz Dziewoński – Polish Wikipedia technomage, MediaWiki developer, global interface editor.
I work for or provide services to the Wikimedia Foundation, as a member of the Editing 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.