Miryoku + QMK + Ferris/Sweep

[CopilotGithubTest]

Disclaimer: Noob question here, this is my first attept using a split keyboard and the first time using an alternative layout, i've followed the step by step the guide to flash miryoku locally, but at the end using:
make ferris/sweep:manna-harbour_miryoku
i've got:
QMK Firmware 0.23.5 Making ferris/sweep with keymap default and target manna-harbour_miryoku [ERRORS] make[1]: *** Nessuna regola per generare l'obiettivo «manna-harbour_miryoku». Arresto. Making ferris/sweep with keymap default_split_3x5_2 and target manna-harbour_miryoku [ERRORS] make[1]: *** Nessuna regola per generare l'obiettivo «manna-harbour_miryoku». Arresto. Making ferris/sweep with keymap test and target manna-harbour_miryoku [ERRORS] make[1]: *** Nessuna regola per generare l'obiettivo «manna-harbour_miryoku». Arresto. Making ferris/sweep with keymap via and target manna-harbour_miryoku [ERRORS] make[1]: *** Nessuna regola per generare l'obiettivo «manna-harbour_miryoku». Arresto. Make finished with errors make: *** [Makefile:416: ferris/sweep:manna-harbour_miryoku] Error 1

Any suggestion? i've done something wrong?

Thanks in advance

[CopilotGithubTest]

I've managed to solve the problem following this:
#280
thanks