On or about July 14, cython 3 was released with breaking changes. pyyaml 6.0 didn't pin to 2.x, so it's now failing to install. This project pins to 6.0, so it's failing to install.
pyyaml 6.0.1 pins to cython <3, so it should work fine, but it hasn't been merged into master yet. I can open a PR to use pyyaml 6.0.1, but I'm not sure how you feel about using "unreleased" versions of dependencies.
On or about July 14, cython 3 was released with breaking changes. pyyaml 6.0 didn't pin to 2.x, so it's now failing to install. This project pins to 6.0, so it's failing to install.
pyyaml 6.0.1 pins to cython <3, so it should work fine, but it hasn't been merged into master yet. I can open a PR to use pyyaml 6.0.1, but I'm not sure how you feel about using "unreleased" versions of dependencies.