C++ 17+
clang++
ncurses
make
Click the download button on the homepage then choose the directory you want to install it to
once downloaded you will need to decompress the file and then extract it
tar xzvf mpass-1.0.0.tar.gz
Once it is decompressed and extract
cd mpass-1.0.0
once inside the mpass directory run
make
once it is is compiled you will find the binary inside of build called mpass
to install it all you need to do it run
doas make install
it will install the binary into /usr/local/bin and the man page mpass.1 into /usr/local/man/man1