Replace the hardcoded list of systems in flake.nix with automatic discovery of host directories under ./systems, and generate the CI build matrix dynamically by evaluating nixosConfigurations rather than maintaining a duplicate list in the workflow.
Replace the hardcoded list of systems in flake.nix with automatic discovery of host directories under ./systems, and generate the CI build matrix dynamically by evaluating nixosConfigurations rather than maintaining a duplicate list in the workflow.