Hi @Epidemiologist_GJC, thanks for waiting. We should be good to go now. There is now a 2025.02.0 release of genome-sampler which builds on the QIIME 2 Framework version 2024.10.
The documentation site has also been transitioned to https://genome-sampler.readthedocs.io, and the project is now hosted on the QIIME 2 Library.
I recommend the following command for installing:
conda env create --name genome-sampler-2025.02.0 --file https://raw.githubusercontent.com/caporaso-lab/genome-sampler/refs/heads/dev/environment-files/genome-sampler-qiime2-amplicon-2024.10.yml
(For folks coming across this post in the future, the most recent install instructions should be obtained from here. The instructions at that link are currently correct - just not as user-friendly as I'd like them to be. 
)
Happy genome sampling!