No problem here with the rant. Was a UNIX admin in a production environment. I feel your pain. ;-)

Good luck, hope things go better for ya soon!

Odroid c4 same as Jetson. OK with 64bit, 32bit errors out. Ubuntu 20.04 aarch64

https://www.mlcathome.org/mlcathome/results.php?hostid=1985

On my Odroi-C4 i have same problem with 32bit app.
After:
sudo apt install zlib1g:armhf
sudo apt install libfuse2:armhf

the 32bit run without problem.
https://www.mlcathome.org/mlcathome/results.php?hostid=1933

Thanks JagDoc!

Thanks for the response.

I'd already tried to run ldd on the app, as that's how i usually fix this sort of issue, but the way it's packaged means I can't see what it needs. Is it possible for you to list which libraries the aarch64 app actually needs please?

I'd already tried to run ldd on the app, as that's how i usually fix this sort of issue, but the way it's packaged means I can't see what it needs

Run it with "--appimage-extract" as the only parameter.

Thanks for the response.

I'd already tried to run ldd on the app, as that's how i usually fix this sort of issue, but the way it's packaged means I can't see what it needs. Is it possible for you to list which libraries the aarch64 app actually needs please?

If you run the client with "--appimage-extract" it extract the embedded filesystem to a "squashfs-root" directory. Here's the output of ldd for the armhf client:

john@debian-imx6-4:~/squashfs-root/usr/bin$ ldd mlds 
	linux-vdso.so.1 (0xbea12000)
	libtorch.so => /home/john/squashfs-root/usr/bin/./../lib/libtorch.so (0xb695f000)
	libc10.so => /home/john/squashfs-root/usr/bin/./../lib/libc10.so (0xb690b000)
	libtorch_cpu.so => /home/john/squashfs-root/usr/bin/./../lib/libtorch_cpu.so (0xb4487000)
	libpthread.so.0 => /lib/arm-linux-gnueabihf/libpthread.so.0 (0xb4443000)
	libsz.so.2 => /home/john/squashfs-root/usr/bin/./../lib/libsz.so.2 (0xb442f000)
	libz.so.1 => /home/john/squashfs-root/usr/bin/./../lib/libz.so.1 (0xb440a000)
	libdl.so.2 => /lib/arm-linux-gnueabihf/libdl.so.2 (0xb43f7000)
	libm.so.6 => /lib/arm-linux-gnueabihf/libm.so.6 (0xb437c000)
	libgomp.so.1 => /home/john/squashfs-root/usr/bin/./../lib/libgomp.so.1 (0xb434b000)
	libc.so.6 => /lib/arm-linux-gnueabihf/libc.so.6 (0xb4251000)
	/lib/ld-linux-armhf.so.3 (0xb6f04000)
	libnuma.so.1 => /home/john/squashfs-root/usr/bin/./../lib/libnuma.so.1 (0xb4237000)
	libstdc++.so.6 => /home/john/squashfs-root/usr/bin/./../lib/libstdc++.so.6 (0xb40ea000)
	libgcc_s.so.1 => /home/john/squashfs-root/usr/bin/./../lib/libgcc_s.so.1 (0xb40bb000)
	librt.so.1 => /lib/arm-linux-gnueabihf/librt.so.1 (0xb40a5000)
	libopenblas.so.0 => /home/john/squashfs-root/usr/bin/./../lib/libopenblas.so.0 (0xb3a91000)
	libaec.so.0 => /home/john/squashfs-root/usr/bin/./../lib/libaec.so.0 (0xb3a79000)
	libgfortran.so.5 => /home/john/squashfs-root/usr/bin/./../lib/libgfortran.so.5 (0xb39d1000)
john@debian-imx6-4:~/squashfs-root/usr/bin$ 

As you can see,all dependencies except for libdl, libm, libc, librt, libpthread, and the loader are included with the client.

Here's aarch64,same story.

pi@pi4-64:~/squashfs-root/usr/bin $ ldd ./mlds 
	linux-vdso.so.1 (0x0000007f85dfd000)
	libtorch.so => /home/pi/squashfs-root/usr/bin/./../lib/libtorch.so (0x0000007f85dbd000)
	libc10.so => /home/pi/squashfs-root/usr/bin/./../lib/libc10.so (0x0000007f85d54000)
	libtorch_cpu.so => /home/pi/squashfs-root/usr/bin/./../lib/libtorch_cpu.so (0x0000007f821d9000)
	libpthread.so.0 => /lib/aarch64-linux-gnu/libpthread.so.0 (0x0000007f82183000)
	libsz.so.2 => /home/pi/squashfs-root/usr/bin/./../lib/libsz.so.2 (0x0000007f8216f000)
	libz.so.1 => /home/pi/squashfs-root/usr/bin/./../lib/libz.so.1 (0x0000007f82141000)
	libdl.so.2 => /lib/aarch64-linux-gnu/libdl.so.2 (0x0000007f8212d000)
	libm.so.6 => /lib/aarch64-linux-gnu/libm.so.6 (0x0000007f82070000)
	libomp.so.5 => /home/pi/squashfs-root/usr/bin/./../lib/libomp.so.5 (0x0000007f81f88000)
	libc.so.6 => /lib/aarch64-linux-gnu/libc.so.6 (0x0000007f81e16000)
	/lib/ld-linux-aarch64.so.1 (0x0000007f85dcf000)
	libstdc++.so.6 => /home/pi/squashfs-root/usr/bin/./../lib/libstdc++.so.6 (0x0000007f81c41000)
	libgcc_s.so.1 => /home/pi/squashfs-root/usr/bin/./../lib/libgcc_s.so.1 (0x0000007f81c1c000)
	libnuma.so.1 => /home/pi/squashfs-root/usr/bin/./../lib/libnuma.so.1 (0x0000007f81bfb000)
	librt.so.1 => /lib/aarch64-linux-gnu/librt.so.1 (0x0000007f81be3000)
	libopenblas.so.0 => /home/pi/squashfs-root/usr/bin/./../lib/libopenblas.so.0 (0x0000007f811a7000)
	libaec.so.0 => /home/pi/squashfs-root/usr/bin/./../lib/libaec.so.0 (0x0000007f8118f000)
	libgfortran.so.5 => /home/pi/squashfs-root/usr/bin/./../lib/libgfortran.so.5 (0x0000007f81036000)
pi@pi4-64:~/squashfs-root/usr/bin $ 

Hope that helps