* Use Numtide's agent package set so Claude Code and Pi can move on the same daily-updated packaging source instead of depending on nixpkgs availability. * This moves Claude Code from 2.1.245 to 2.1.251 and Pi from 0.84.3 to 0.84.4. Release notes: https://github.com/anthropics/claude-code/releases https://github.com/earendil-works/pi/releases * Verified with `nix flake check --no-build`, direct Home Manager activation, `claude -v`, and `pi --version`.