There are 2 repositories under rc2014 topic.
KiCad schematics and gerbers for a YM sound card for the RC2014. See it in action here: https://www.youtube.com/watch?v=-iLwi9FagFE
ANSI / VT-100 Terminal emulator for Parallax Propeller microcontroller with VGA and USB support
R.T. Russell's BBC BASIC for Z80, with additional features by J.B. Langston
Add-on board and firmware for the RC2014 computer to provide graphics capabilities
KiCad schematics and gerbers for an IDE adapter for the RC2014.
A FIG-FORTH I found buried in a ZIP file on the Z80 info site at ... http://www.z80.info/zip/z80asm.zip
Flipper Zero application and RC2014 module allowing the Flipper to be used as a controller for ColecoVision games.
CP/M Disk-Manager based on "CP/M on breadboard by Grant Searle"
Amstrad CPC firmware adapted to run on an RC2014
A C library for using the TMS9918A video board on a RC2014 retrocomputer.
Test firmware for the RC2014 Z80 computer
Code to write/burn data to the RC2014 512k ROM 512k RAM board
R.T. Russell's BBC BASIC for Z80, with additional features by J.B. Langston
Enhanced dual joystick board for the RC2014 computer
An old polish Z80 educational computer. Stary polski komputer w nowej wersji.