Commands to install Nix on new Alpine Linux host

install.sh

# Enable the community repository
sed -i 's/#\(.*\/community\)/\1/' /etc/apk/repositories

# Install Nix package
apk add --no-cache nix shadow

# Assuming you're running as root
# Add user to the nix group
# Using shadow because I'm incompetent
myuser=heywoodlh
usermod -aG nix $myuser

# Configure Nix for flakes
cat <<EOF > /etc/nix/nix.conf
allowed-users = @nix
build-users-group = nixbld
max-jobs = 4
extra-experimental-features = nix-command flakes
EOF

# Enable nix-daemon on boot
rc-update add nix-daemon
rc-service nix-daemon restart