This is a typical "look what I did" posting:
"LSIbox" is a micro-Linux system used as front-end processor for a QBUS PDP-11.
Core is a BeagleBone with 4 UARTs and GPIOs, connected to H9270 backplane.
You can remote control the front panel,
download code and start it over ODT console,
run terminal and PDP-11 emulations,
operate the PDP-11 "driveless" with TU58 emulator or SCSI2ID,
or use the box as a small Debian-PC.
Everything is packed in a small DEC-style box, making a stylish outfit was most work.
See retrocmp.com/projects/lsibox + sub pages
Took half a year to complete, perhaps waste of time?