I need help on how to do this?

[eticaretmuhendisi]

Hi,
This is my first time with LineageOS. I couldn't figure out how to build the app.
Actually, I'm not a native Android developer, I have some Flutter experience. I think I can do it if I'm told what to follow to build the app.

Best regards.

[ramenrolls]

The information is in the project README:
In building LOS, clone the appropriate branch, QCOM or MTK. Depending on the device chip, obviously.

If you're building with a common tree, place the app in the common.mk. Or in your device.mk.

f you are building for a Mediatek device, the following entries go to the device makefile

PRODUCT_PACKAGES += \
    RevampedFMRadio \
    libmtkfmjni