how to build v4.2 on linux arm64

[nearology]

dear developer
i have fork on qgc stable 4.2 which is compatible with qt.5.15
So far, I have been doing the build on operating system Windows and X86 architecture without any problems
But now I want to build this fork for Linux with architecture aarch64

Is this possible?
Does anyone have a suitable docker image?
thank you

[HTRamsey]

https://doc.qt.io/qt-5/supported-platforms.html

[nearology]

It doesn't seem possible in QT 5.15 :(
how can i build stable 4.2 in QT6.x?

[nearology]

but in this page
https://bugfreeblog.duckdns.org/docker-qt-tags
https://hub.docker.com/r/carlonluca/qt-dev/tags?page=&page_size=&ordering=&name=5.15.2
but it is said here docker 5.15.2 (linux) suporrted amd64 and arm64
@HTRamsey