John Ogle
4b0adcc020
Integrate sendspin-cli as a custom package using python3.withPackages. Packages aiosendspin from GitHub since it's only available in nixpkgs-unstable. Includes all required dependencies: aiohttp, av, numpy, qrcode, readchar, rich, sounddevice, and native libraries (portaudio, ffmpeg). Adds uv2nix flake inputs for future migration when sendspin-cli adds a uv.lock file.