Raspberry OS 64bit Ledshim

I am trying to get the LEDShim set-up on Raspberry OS 64bit.
Using the one line installer, I get:
This hardware is not supported, sorry!
Config files have been left untouched

If I install it using apt, it installs OK.
I get this with systemctl:
Oct 11 23:21:53 house-master systemd[1]: Started Setup Led Shim.
Oct 11 23:21:54 house-master ledshim[407]: Traceback (most recent call last):
Oct 11 23:21:54 house-master ledshim[407]: File “/usr/local/bin/ledshim”, line 11, in
Oct 11 23:21:54 house-master ledshim[407]: import ledshim
Oct 11 23:21:54 house-master ledshim[407]: ImportError: No module named ledshim
Oct 11 23:21:55 house-master systemd[1]: ledshim.service: Main process exited, code=exited, status=1/FAILURE
Oct 11 23:21:55 house-master systemd[1]: ledshim.service: Failed with result ‘exit-code’.

Any ideas?

I’d say its most likely because your running the 64 bit version of Pi OS. It’s installer is likey setup for the 32 bit version, as that’s the current main stream version.