Error building pycsep on binder.org

[pjmaechling]

We are evaluating use of mybinder.org for training purposes. This site does an automated build of pycsep repo. However, the main branch current exits during the build with the error below. Can we resolve this error to make mybinder.org a usable testing service?

Collecting multidict>=4.0
Downloading multidict-6.0.4-cp310-cp310-manylinux_2_17_x86_64.manylinux2014_x86_64.whl (114 kB)
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 114.5/114.5 kB 147.1 MB/s eta 0:00:00
Building wheels for collected packages: cartopy
Building wheel for cartopy (pyproject.toml): started
Building wheel for cartopy (pyproject.toml): finished with status 'error'
error: subprocess-exited-with-error

× Building wheel for cartopy (pyproject.toml) did not run successfully.
│ exit code: 1
╰─> [287 lines of output]
:90: UserWarning: Unable to determine GEOS version. Ensure you have 3.7.2 or later installed, or installation may fail.
running bdist_wheel
running build
running build_py
creating build
creating build/lib.linux-x86_64-cpython-310
creating build/lib.linux-x86_64-cpython-310/cartopy
copying lib/cartopy/vector_transform.py -> build/lib.linux-x86_64-cpython-310/cartopy

[wsavran]

Is there a way to use conda to build things on mybinder.org? cartopy has some weird dependencies that are difficult to install with pip but easy with conda.