{
  kicad,
  kikit,
  zip,

  runCommand,
  nix-filter,

  panel,
}: let
  schSrc = nix-filter {
    root = ./..;

    include = [
      (nix-filter.matchExt "kicad_sch")
    ];
  };

  pcbSrc = nix-filter {
    root = ./..;

    include = [
      (nix-filter.matchExt "kicad_pcb")
      (nix-filter.matchExt "kicad_pro")
    ];
  };

in runCommand "ocularium.fab" {
  nativeBuildInputs = [
    kicad
    kikit
    zip
  ];

  src = panel;

  allowedRequisites = [];
} ''
  set -e

  mkdir -p $out/share/npry/ocularium/fab
  mkdir -p $out/share/npry/ocularium/panel/fab

  export HOME=$(mktemp -d)

  cd $out/share/npry/ocularium/fab

  kikit fab jlcpcb --assembly \
    --no-drc \
    --schematic ${schSrc}/okm.kicad_sch \
    --field 'LCSC Part #,LCSC Part No' \
    --missingError \
    ${pcbSrc}/okm.kicad_pcb .
  rm -rf gerber

  cd ../panel

  kikit fab jlcpcb --assembly \
    --no-drc \
    --schematic ${schSrc}/okm.kicad_sch \
    --field 'LCSC Part #,LCSC Part No' \
    --missingError \
    $src/share/npry/ocularium/panel.kicad_pcb .
  rm -rf gerber
''