There is currently a Pull Request open to merge the Sofle Pico into QMK master. Recent changes to QMK require new keyboards be submitted as ‘pristine’ layouts - specifically, minimal keymap with no custom keycodes and no advanced features. The official QMK recommended method for supporting advanded features is to use [qmk_userspace](https://github.com/qmk/qmk_userspace). However - until the Sofle Pico is merged into the qmk_firmware master branch, it will not be available for use in qmk_userspace. Until that merge completes, you can develop advanced features by forking the JellyTitan qmk_firmware branch [sofle_pico_fancy](https://github.com/JellyTitan/qmk_firmware/tree/sofle_pico_fancy). The default keymap is a port of the legacy Sofle keymap, including Colemak, custom keys, and OLED status updates.

Compile your own firmware with QMK

If you want to build your own firmware, Sofle Pico uses [QMK Firmware][qmk_firmware]. Support is not in the main QMK repository yet, but there is a PR pending review. See the flashing help page for more details. Until that PR is merged, you can use the jellytitan/qmk_firmware fork. (Be sure to use the sofle_pico branch).

https://docs.qmk.fm/#/flashing?id=raspberry-pi-RP2040-uf2

To flash:

• Clone https://github.com/jellytitan/qmk_firmware
• Switch to the sofle_pico branch with git checkout sofle_pico
• Make sure your QMK environment [is setup][qmkintro].
• Make sure halves are not connected together with TRRS cable.
• Connect one half to USB, flash the firmware (always follow the current instructions in the QMK documentation! The command might look something like this: qmk flash -kb sofle_choc -km default). Use the reset button to reset the keyboard when you are asked to in console.
• Connect the second half and flash it in the same way as the previous one.
• Disconnect the USB cable. Connect both halves together with TRRS cable.
• Connect USB cable to the left side.
• Enjoy!