{\acro{MFCONFIG}: Metafont plug-in for the Freetype rasterizer} {\regularorprogramstring{Sungmin Kim, Jaeyoung Choi, Geunho Jeong} {Jaeyoung Choi}} {One of the strengths of Metafont is to show various styles of fonts by changing values of the parameters, which represent font styles. This advantage can be applied to letters of Roman alphabet characters and complicated \acro{CJK} characters. However, Metafont can't in general be used by font engines directly. It must be changed to outline font format to be used in the current computing environment. Also, Metafont doesn't need to create font families like Bold, Italic and Bold-Italic because it can generate various styled fonts automatically by just changing values of parameters. Therefore Metafont can reduce development time and cost required to produce a font family. In this paper, we propose a \acro{MFCONFIG} module, which enables Metafont to be directly used on \GNU/Linux. It must be installed with the popular rasterizer, Freetype. \acro{MFCONFIG} is a plug-in module to \code{fontconfig} library of the Freetype engine, which makes Freetype engine compatible with current digital font formats of both bitmap and outline fonts. It supports various styled fonts, generated from Metafont with different parameters.}