ultrix/VAX cfg: http://gunkies.org/wiki/Installing_Ultrix_4.5_on_SIMH#Bootstrapping_ULTRIX
Quasijarus cfg: initfiles.zip@ http://www.tavi.co.uk/unixhistory/quasijarus.html
VAX/VMS 4 cfg: from a downloadable version online
OpenVMS 7.3 cfg: http://www.wherry.com/gadgets/retrocomputing/vax-simh.html
2.11 BSD PDP-11 cfg: http://vak.ru/doku.php/proj/pdp11/211bsd
rsx-11: http://retrocmp.com/stories/getting-rsx11m-running-on-simh
TOPS-10: https://www.steubentech.com/~talon/pdp10/
TOPS-20 PANDA: http://panda.trailing-edge.com/
RT-11 and RSTS/e: https://pdp-11.org.ru/files.pl?lang=en