to build run

RUSTFLAGS="-Zlocation-detail=none -C target-cpu=cortex-a53" cargo +nightly zigbuild -Z build-std=std,panic_abort --target aarch64-unknown-linux-gnu.2.31 --release

and then

upx --best --lzma target/aarch64-unknown-linux-gnu/release/go-upload-server

Make sure it is compiled using glibc 2.31 or lower

package it as .deb:

cargo deb --no-build --target aarch64-unknown-linux-gnu --no-strip

sign the package:

dpkg-sig --sign builder target/aarch64-unknown-linux-gnu/debian/go-upload-server_*_arm64.deb