Change firmware of creality ender 3 V3 SE

Hello, I have wanted to modify the firmware of my creality ender 3 V3 SE for a few months but I could not because creality had not published the source code. But 4 days ago I think they published it : GitHub - CrealityOfficial/Ender-3V3-SE: Open source for Ender-3V3 SE
Can you confirm to me that this is indeed the source code?
Thank you in advance for your answers.

Hi @THE_lulu57 :wave:,
Yes, the link you provided is indeed the official; source code for the Creality Ender-3 V3 SE on GitHub. You can now modify the firmware as needed.