KEK Kek might (I work occasionally on it so don't hold your breath) become a DEC PDP-11 (11/70) emulator capable of running UNIX-v5. Run: make all to build. Required: * libncursesw5-dev To run a disk image: ./kek -R filename.rk -b 2> /dev/null Kek emulates an RK05. To run a tape image: ./kek -T filename.bin -b 2> /dev/null The ESP32 version needs platformio to be build. cd ESP32 pio run -t upload That should build & upload it to a connected ESP32. Wiring of SDCARD (or use disk-images exported via NBD over wifi using nbdkit (because of older NBD protocol implementation)): * MISO: 19 * MOSI: 23 * SCK : 18 * SS : 5 * and of course connect VCC/GND of the SD-card Wiring of the MAX232 connection: * TX : 17 * RX : 16 Released under Apache License v2.0 Folkert van Heusden