There are 2 repositories under mt6771 topic.
Common device tree for the Unihertz Atom L and XL
Device tree for the Unihertz Atom XL EEA (european union)
Common device tree for the Unihertz Atom L and XL
Device tree to build LineageOS 17.1 and 18.1 for UMIDIGI F1 Play
TWRP device tree for UMIDIGI F1 Play
Device tree for the Unihertz Atom XL (model)
Device tree for the Unihertz Atom L EEA (european union)
Device tree for the Unihertz Atom L EEA (european union)
Device tree for the Unihertz Atom XL EEA (european union)
full_oppo6771-user 10 QP1A.190711.020 7604ad4e2b1328a1 release-keys
TWRP device tree for Realme U1 (RMX1831)
[mt6771] Minimal Device Tree for Building Oppo Realme 1 (CPH1861 & CPH1859) Recoveries
full_tb8788p1_64_wifi-user 11 RP1A.200720.011 1632966161 release-keys
full_oppo6771-user 10 QP1A.190711.020 08805472cb0b87b3 release-keys
full_oppo6771-user 10 QP1A.190711.020 7604ad4e2b1328a1 release-keys
full_oppo6771_18611-user 9 PPR1.180610.011 eng.root.20200722.215443 release-keys
full_g2062upt_v1_gd_sh2_gq_r-user 11 RP1A.200720.011 2106051247 release-keys
TWRP device tree for Nokia 5.1 plus (PDA_sprout)
TWRP device tree for Realme 3 (RMX1821/RMX1825)
full_oppo6771-user 10 QP1A.190711.020 08805472cb0b87b3 release-keys
Device configuration OSS for the UMIDIGI A5 Pro. Prebuilt stock kernel Android 9 (4.4.146)
Vendor tree for Primebook-4G