{
  lib,
  beamPackages,
  towerops-nif,
  net-snmp,
  writeShellScriptBin,
}:

beamPackages.mixRelease {
  pname = "towerops";
  version = "0.1.0";

  # Source files (filtered to exclude build artifacts)
  src = lib.sourceFilesBySuffices ../. [
    ".ex"
    ".exs"
    ".eex"
    ".heex"
    ".leex"
    ".erl"
    ".hrl"
    ".js"
    ".ts"
    ".css"
    ".json"
    ".proto"
    ".md"
    ".txt"
    ".mib"
    ".gitignore"
  ];

  # Filter function to include necessary files and directories
  # but exclude build artifacts
  postUnpack = ''
    # Remove build artifacts and temp directories from source
    find $sourceRoot -type d \( \
      -name "_build" -o \
      -name "deps" -o \
      -name ".elixir_ls" -o \
      -name ".elixir-tools" -o \
      -name "node_modules" -o \
      -name "cover" -o \
      -name ".git" \
    \) -exec rm -rf {} + 2>/dev/null || true

    # Remove dotfiles that shouldn't be in the build
    find $sourceRoot -maxdepth 1 -type f -name ".*" ! -name ".formatter.exs" ! -name ".credo.exs" -delete 2>/dev/null || true
  '';

  # Mix environment
  mixEnv = "prod";

  # Environment variables for build
  MIX_OS_DEPS_COMPILE_PARTITION_COUNT = "6";

  # Pre-build: Copy pre-built NIF and stub the Makefile to skip rebuild
  preBuild = ''
    # Copy pre-built NIF shared library
    mkdir -p priv
    cp ${towerops-nif}/lib/towerops_nif.so priv/

    # Stub the c_src/Makefile to prevent rebuild
    cat > c_src/Makefile << 'EOF'
    # Stubbed Makefile - NIF pre-built by Nix
    all:
    	@echo "Using pre-built NIF from ${towerops-nif}"
    clean:
    	@echo "NIF managed by Nix, nothing to clean"
    .PHONY: all clean
    EOF
  '';

  # Build assets after Mix compilation
  postBuild = ''
    # Build production assets (Tailwind + esbuild)
    mix assets.deploy
  '';

  # Install MIB files to the release
  postInstall = ''
    # Copy MIB files directory
    if [ -d "$src/priv/mibs" ]; then
      mkdir -p $out/lib/towerops-${version}/priv/mibs
      cp -r $src/priv/mibs/* $out/lib/towerops-${version}/priv/mibs/
    fi

    # Ensure NIF is in the release
    mkdir -p $out/lib/towerops-${version}/priv
    cp ${towerops-nif}/lib/towerops_nif.so $out/lib/towerops-${version}/priv/
  '';

  meta = {
    description = "Towerops - Phoenix LiveView SNMP monitoring platform";
    license = lib.licenses.proprietary;
    platforms = lib.platforms.unix;
  };
}