Alacritty no longer runs after upgrading to 20.03. It was running before with NixOS 19.09. The error message is:
Error creating GL context; Received multiple errors. Errors: `[OsError("Could not create EGL display object"), OsError("`glXQueryExtensionsString` found no glX extensions")]`
It isn’t clear what needs to be done to fix the problem.
Note this is similar to Alacritty crashs right after launch except I am running NixOS 20.03 rather than a non-NixOS system.