afni.nimh.nih.gov

So sorry forgot to mention.

Have since upgraded to:
afni -ver
Precompiled binary linux_ubuntu_16_64: Jun 6 2022 (Version AFNI_22.1.13 'Antoninus Pius')

And moved from Ubuntu to Pop:

lsb_release -a
No LSB modules are available.
Distributor ID: Pop
Description: Pop!_OS 22.04 LTS
Release: 22.04
Codename: jammy

On this machine.