Just had this issue the other day. I don't think you have to compile from source if you don't want to. I'm on a Raspberry Pi 5.
It looks like EtherLab changed the name of their distribution repo from IgH to EtherLab. Check out the new location on this page under the Debian section.
etherlab.org/en_GB/getting-started
Relevant instructions:
export KEYRING=/usr/share/keyrings/etherlab.gpg
curl -fsSL
download.opensuse.org/repositories/scien...ebian_12/Release.key
| gpg --dearmor | sudo tee "$KEYRING" >/dev/null
echo "deb [signed-by=$KEYRING]
download.opensuse.org/repositories/science:/EtherLab/Debian_12/
./" | sudo tee /etc/apt/sources.list.d/etherlab.list > /dev/null
sudo apt-get update
You will have to remove the sources list of IgH if you don't want errors during apt updates.
I don't know if you guys rebuild images between releases, but if it's possible to remove the IgH repo in favor of the EtherLab it may be helpful.