Unable to initialize bia-binder environments

[yulewu]

Dear developers and maintainers of Bia-binder,

I am unable to initialize bia-binder environments, including all the examples listed on https://bia-binder.readthedocs.io/en/latest/ and my personal repo.

Example: Bia-binder demo for BioStudies notebooks fails to launch

https://bia-binder.readthedocs.io/en/latest/

URL: https://binder.bioimagearchive.org/v2/gh/EBIBioStudies/biostudies-notebooks/HEAD

Description:
I tried to launch the Binder demo for Reading BioStudies images using the link above, but the build fails during environment setup with a mamba installation error.

Error output:

An unexpected error has occurred. Conda has prepared the above report.

Looking for: ['mamba==0.7.4']

pkgs/main/noarch
time: 1.116
time: 25.032
building at STEP "RUN TIMEFORMAT='time: %3R' bash -c 'time /tmp/install-miniforge.bash' && rm -rf /tmp/install-miniforge.bash /tmp/env": while running runtime: exit status 1

The complete log cab found here: biaimage_log.txt

Additional notes:

• The Binder build log shows mamba (0.7.4) being used.
• It appears that the environment setup script (install-miniforge.bash) fails while installing dependencies.
• This prevents the notebook from launching successfully.

Steps to reproduce:

1. Go to https://binder.bioimagearchive.org/v2/gh/EBIBioStudies/biostudies-notebooks/HEAD
2. Wait for the environment to build.
3. Observe that the build fails with the error above.

Expected behavior:
The Binder instance should build successfully and open the demo notebook for reading BioStudies images.

Environment:

• Tried in Chrome Version 141.0.7390.109 (Official Build) (64-bit)
• Tested on 24 Oct 2025

[yulewu]

Updates: This issue does not appear to be tied to any specific notebook or repository. It occurs during the early build steps when installing Mamba. The same problem is observed across all examples listed on https://bia-binder.readthedocs.io/en/latest/