The repo has never been updated and the file is missing. There is the "default" keymap that doesn't use the dlip.h file; you could try it. If it works, you could build your own keymap on top of it. Another option would be to look for other users' config.
I'm struggling to find evidence of anyone besides dlip using Chouchou. I guess i could set every key to something more normal and use Kanata to set up the chording, or i could learn QMK and make the files i need from scratch. The default keymap doesn't work as it is.
I just remembered to open an issue on GitHub, so hopefully that gets me some answers.
Getting the author to reply to your github issue would be the best outcome.
Otherwise, if you can get any keymap to work on the Chouchou, you'd be halfway there. Adapting the keymap from another keyboard with the same number of keys should not be too hard. You'd have to learn a bit more about QMK.
Also, the instructions for Chouchou say to flash the firmware before adding the keyswitches. Is there any reason why i shouldn't add those first while i'm waiting for answers here?
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