I plan to break my system.. why do you say I shouldn't?

[devnull]

@celestial

And while this shouldn’t change much, I am not a freeloader just waiting for other’s help. Like you said, I do follow feel free to improve, and have submitted pull request to the NextCloud Photo’s app for a support on HEIC files in the docker environment. Someone else’s change that included more things was better, but I am certainly not someone who just expects others to wait on me. I am not attacking you, and highly appreciate anyone who spends time answering questions on these forums.

The support of HAIC belongs on the Nextcloud instance. E.g. MagentaCLOUD and Shadow Drive supports HAIC in Files and Photos.

But it seems that is more a problem of the previews. HEIC Previews are JPG
Read this.