\DeclareFontFamily{OT1}{DejaVuSansMono}{}
\DeclareFontShape{OT1}{DejaVuSansMono}{m}{n}{ <-> s*[0.8] OT1DejaVuSansMono}{}
\DeclareFontShape{OT1}{DejaVuSansMono}{bx}{n}{ <-> s*[0.8] OT1DejaVuSansMono-Bold}{}
\DeclareFontShape{OT1}{DejaVuSansMono}{m}{sl}{ <-> s*[0.8] OT1DejaVuSansMono-Oblique}{}
\DeclareFontShape{OT1}{DejaVuSansMono}{bx}{sl}{ <-> s*[0.8] OT1DejaVuSansMono-BoldOblique}{}