The moment I saw the DSPico I knew I had to get one. It's an entirely open source flash cart for the Nintendo DS series! It was the last piece of the puzzle to fixing, modding and upgrading my DS Lite into 2026.
If you've got a DS gathering dust in a corner and you're up for some retro gaming (I hate saying it but it's true, my childhood is now retro), the homebrew scene isn't dead - it's gotten some big upgrades. Now I can enjoy my latest re-run of the Witcher 3 Remastered in Nintendo Death March difficulty.
Here's a link to the one I bought. It's an open source hardware project so you're always able to download the files from the Github repository and make it yourself, but unless you like the challenge, that's not worth it for just one.
Once you've got one in your DS, it's time for the game controller homebrew! It's hosted at https://github.com/Incipiens/dspico-usb-gamepad. It gets exposed to your computer as a standard gamepad, but it is missing joysticks and L2/R2 triggers - something most modern games expect. The touch display can trigger actions too, which is pretty neat. You'll probably need to do some remapping to get it to work in your favourite games, but it works!
I guess it's useful as an extra controller for your little sibling in a pinch, but I'd probably go for a regular game controller.