nix-build-pkg-without-substitution.sh

## Build a Nix derivation without binary cache substitution

# Use a separate, temporary Nix store, so we can debug derivations that are already
# available in the main store
store="--store /tmp/store"
sudo rm -rf /tmp/store

# Fetch all build deps from the binary cache
nix print-dev-env $store --substitute myflake#output >/dev/null

# Build just the drv, without substitution
nix build --no-link --print-out-paths -L $store --no-substitute myflake#output

# Cleanup
sudo rm -rf /tmp/store