For the past year I have been hard at work and now it is finally the time to present my project here: Celio-Link.
Celio-Link lets you play Generation III Game online. I am talking about Battles, Trades, Record Mixing, Berry Blend, etc. almost all link functionality is supported!
Celio-Link emulates a Link Cable connection over the internet, so this works on real Hardware without any modifications.
All Generation III games are supported:
* Ruby * Saphire * Emerald * Firered * Leafgreen
Not only that, you can also connect your GBA to an instance of the mGBA emulator for emulator to real hardware crossplay!
If you are interested, the hardware to run Celio-Link is called GBLink and we are currently launching a crowdsupply project to get the hardware into your hands.
PS: This project is based on a RPI-Pico 2040 and everything is open source. If you want you can build your own GBLink right now. Firmware can be found on the githubs ;) #games source