%
% Custom environments
%

% Code frame
\DefineVerbatimEnvironment{code}{Verbatim}
{
    tabsize=4,
    samepage=true,
    frame=lines,
    numbers=left,
}

% Nonpagebreaking chapter
\newenvironment{npbrChap}
{
    \begingroup
    \let\clearpage\relax
}
{
    \endgroup
}