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Install machine0 
curl -LsSf https://machine0.io/install.sh | sh
Define your OS as code with NixOS. Spin up clones with enough resources to compile, test, and run browsers. 
# Create a NixOS VM
machine0 new devbox --image nixos-25-11-loaded --size large

# Clone the flake, modify the config, rebuild
git clone https://github.com/fdmtl/machine0-nixos.git ./
claude -p "Add postgres to the loaded profile"
machine0 provision devbox ./flake.nix#loaded

# SSH in and start working
machine0 ssh devbox

# Create a golden master snapshot
machine0 stop devbox
machine0 images new devbox devbox-gm

# Need a clean or larger VM? Spin one up from the image
machine0 rm devbox
machine0 new devbox --image devbox-gm --size xxl