The playwright docs pretty clearly state that the releases are tied to their specific browser versions, so this approach will fetch, patch and wrap them.

This repo also showcases how to wire things up for pytest.

nix-shell --run 'poetry install && poetry run pytest' or ./run_tests.sh which does exactly that.

For playing around, running nix-shell followed by poetry shell is probably nicer.

Try passing --headed or --browser=firefox to pytest.

This is using a pretty blunt method to get the rpath, interpreter and wrapper: We install the binary browsers from nixpkgs and take stuff from there. This has a few problems:

• It's inefficient. There's no real need to install nixpgks chrome to do this
• It's brittle. If nixpkgs changes how their wrappers work, some playwright browser versions might stop working.

The main reason why I chose this approach is that I do not understand how nixpkgs generates the wrappers and I don't want to think too much about the specific dependencies. It could theoretically be advantageous to patchelf and generate the wrappers ourselves, so if you want to follow that idea, I'd love to see where that goes.

I could not have done this without this work by ludios