I am in the same boat, International g900h exynos model seems to be not supported at all by development, sadly this is the only model available on my country. I hope this changes when more people gets it.
H = Exynos, not many ppl picked that version up compared to the Qualcomm models...thats one reason you arent seeing as much dev for your variant....second the Exynos platform is notorious for being unfriendly to devs regarding source release.
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