LaTeX (/ˈlɑːtɛk/ ⓘ LAH-tek or /ˈleɪtɛk/ LAY-tek,[2] often stylized as LaTeX) is a software system for typesetting documents

Note the pronunciation is distinct from /ˈleɪˌtɛks/ the material.

But, sure everyone has to make that joke at least once.