BrandonKowalski/slot

A bespoke, Game Boy-centric CFW for the RG SP.

Rust

215

454 commits

updated Oct 18, 2026

See the code

README

slot. A bespoke, Game Boy-centric frontend for the Anbernic RG SP.

License Stars Downloads Guide Changelog


What is slot?

A bespoke, Game Boy-centric frontend for the Anbernic RG SP.

Has support for GBA, GBC, and GB titles only.

[!IMPORTANT] ROMs must be unzipped. slot does not read .zip or .7z files.

A full user guide can be found at slot-cfw.fyi.

Release notes can be found in the changelog.


What does it look like?

Scrolling the cart carousel across the Game Boy Advance, Game Boy and Game Boy Color shelves Flipping a cart to its circuit board to choose mGBA or gpSP

Two SPs racing in Mario Kart over the emulated link


Supported Devices

DeviceSupportedSince Version
Anbernic RG SPYesAlways
Anbernic RG34XXYes1.4.0
Anbernic RG34XXSPYes (No Stick Support Yet)1.4.0
Anbernic RG35XXSPYes1.5.0
Anbernic 35XX PlusYes1.5.0
Anbernic RG28XXYes1.6.0

RG28XX support was contributed by GamerAnim. Its panel is mounted portrait, so slot turns the picture onto it. If it comes out upside down, add export SLOT_ROTATE=ccw to System/launch_frontend.sh.

If you have one of the untested devices, or have tried slot on a device not listed, please open an issue on GitHub and let me know how it went.


AI Disclosure

The Rust frontend was put together by Claude Opus. I reviewed everything that was produced. All documentation is 100% free-range, meatbag prose.

The project is extremely low stakes. I wanted a bespoke frontend for my RG SP and thought that something that evokes the feeling of using my GBA SP as a kid would be pretty neat.

Use it, don't use it, I don't care.

Figured I should share the end result of all the wasted water. ✌🏻

anbernic
anbernic-rg-sp
emulation
gb
gba
gbc
gpsp
mgba
retrogaming

BrandonKowalski/slot

A bespoke, Game Boy-centric CFW for the RG SP.

Rust

215

454 commits

updated Oct 18, 2026

See the code

README

slot. A bespoke, Game Boy-centric frontend for the Anbernic RG SP.

License Stars Downloads Guide Changelog


What is slot?

A bespoke, Game Boy-centric frontend for the Anbernic RG SP.

Has support for GBA, GBC, and GB titles only.

[!IMPORTANT] ROMs must be unzipped. slot does not read .zip or .7z files.

A full user guide can be found at slot-cfw.fyi.

Release notes can be found in the changelog.


What does it look like?

Scrolling the cart carousel across the Game Boy Advance, Game Boy and Game Boy Color shelves Flipping a cart to its circuit board to choose mGBA or gpSP

Two SPs racing in Mario Kart over the emulated link


Supported Devices

DeviceSupportedSince Version
Anbernic RG SPYesAlways
Anbernic RG34XXYes1.4.0
Anbernic RG34XXSPYes (No Stick Support Yet)1.4.0
Anbernic RG35XXSPYes1.5.0
Anbernic 35XX PlusYes1.5.0
Anbernic RG28XXYes1.6.0

RG28XX support was contributed by GamerAnim. Its panel is mounted portrait, so slot turns the picture onto it. If it comes out upside down, add export SLOT_ROTATE=ccw to System/launch_frontend.sh.

If you have one of the untested devices, or have tried slot on a device not listed, please open an issue on GitHub and let me know how it went.


AI Disclosure

The Rust frontend was put together by Claude Opus. I reviewed everything that was produced. All documentation is 100% free-range, meatbag prose.

The project is extremely low stakes. I wanted a bespoke frontend for my RG SP and thought that something that evokes the feeling of using my GBA SP as a kid would be pretty neat.

Use it, don't use it, I don't care.

Figured I should share the end result of all the wasted water. ✌🏻

anbernic
anbernic-rg-sp
emulation
gb
gba
gbc
gpsp
mgba
retrogaming

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3,570 followers · starred Oct 2026