ocamlPackages.*: use spaces for indentation

34 files changed, 437 insertions, 438 deletions

diff --git a/pkgs/development/ocaml-modules/bos/default.nix b/pkgs/development/ocaml-modules/bos/default.nix
index 84cee3d97ce..62438526d70 100644
--- a/pkgs/development/ocaml-modules/bos/default.nix
+++ b/pkgs/development/ocaml-modules/bos/default.nix
@@ -3,24 +3,24 @@
 }:
 
 stdenv.mkDerivation rec {
-	name = "ocaml${ocaml.version}-bos-${version}";
-	version = "0.2.0";
-	src = fetchurl {
-		url = "https://erratique.ch/software/bos/releases/bos-${version}.tbz";
-		sha256 = "1s10iqx8rgnxr5n93lf4blwirjf8nlm272yg5sipr7lsr35v49wc";
-	};
+  name = "ocaml${ocaml.version}-bos-${version}";
+  version = "0.2.0";
+  src = fetchurl {
+    url = "https://erratique.ch/software/bos/releases/bos-${version}.tbz";
+    sha256 = "1s10iqx8rgnxr5n93lf4blwirjf8nlm272yg5sipr7lsr35v49wc";
+  };
 
-	nativeBuildInputs = [ ocaml findlib ocamlbuild ];
-	buildInputs = [ findlib topkg ];
-	propagatedBuildInputs = [ astring fmt fpath logs rresult ];
+  nativeBuildInputs = [ ocaml findlib ocamlbuild ];
+  buildInputs = [ findlib topkg ];
+  propagatedBuildInputs = [ astring fmt fpath logs rresult ];
 
-	inherit (topkg) buildPhase installPhase;
+  inherit (topkg) buildPhase installPhase;
 
-	meta = {
-		description = "Basic OS interaction for OCaml";
-		homepage = "https://erratique.ch/software/bos";
-		license = lib.licenses.isc;
-		maintainers = [ lib.maintainers.vbgl ];
-		inherit (ocaml.meta) platforms;
-	};
+  meta = {
+    description = "Basic OS interaction for OCaml";
+    homepage = "https://erratique.ch/software/bos";
+    license = lib.licenses.isc;
+    maintainers = [ lib.maintainers.vbgl ];
+    inherit (ocaml.meta) platforms;
+  };
 }
diff --git a/pkgs/development/ocaml-modules/camomile/default.nix b/pkgs/development/ocaml-modules/camomile/default.nix
index 2b246d0f3ea..6bae728cafa 100644
--- a/pkgs/development/ocaml-modules/camomile/default.nix
+++ b/pkgs/development/ocaml-modules/camomile/default.nix
@@ -2,23 +2,23 @@
 
 buildDunePackage rec {
   pname = "camomile";
-	version = "1.0.2";
+  version = "1.0.2";
 
-	src = fetchFromGitHub {
-		owner = "yoriyuki";
-		repo = pname;
-		rev = version;
-		sha256 = "00i910qjv6bpk0nkafp5fg97isqas0bwjf7m6rz11rsxilpalzad";
-	};
+  src = fetchFromGitHub {
+    owner = "yoriyuki";
+    repo = pname;
+    rev = version;
+    sha256 = "00i910qjv6bpk0nkafp5fg97isqas0bwjf7m6rz11rsxilpalzad";
+  };
 
-	buildInputs = [ cppo ];
+  buildInputs = [ cppo ];
 
-	configurePhase = "ocaml configure.ml --share $out/share/camomile";
+  configurePhase = "ocaml configure.ml --share $out/share/camomile";
 
-	meta = {
-		inherit (src.meta) homepage;
-		maintainers = [ lib.maintainers.vbgl ];
-		license = lib.licenses.lgpl21;
-		description = "A Unicode library for OCaml";
-	};
+  meta = {
+    inherit (src.meta) homepage;
+    maintainers = [ lib.maintainers.vbgl ];
+    license = lib.licenses.lgpl21;
+    description = "A Unicode library for OCaml";
+  };
 }
diff --git a/pkgs/development/ocaml-modules/cohttp/async.nix b/pkgs/development/ocaml-modules/cohttp/async.nix
index 974c3aa2f9c..21e22533f1b 100644
--- a/pkgs/development/ocaml-modules/cohttp/async.nix
+++ b/pkgs/development/ocaml-modules/cohttp/async.nix
@@ -2,21 +2,21 @@
 , logs, magic-mime }:
 
 if !lib.versionAtLeast cohttp.version "0.99" then
-	cohttp
+  cohttp
 else if !lib.versionAtLeast async.version "0.13" then
-	throw "cohttp-async needs async-0.13 (hence OCaml >= 4.08)"
+  throw "cohttp-async needs async-0.13 (hence OCaml >= 4.08)"
 else
 
-	buildDunePackage {
-		pname = "cohttp-async";
-		useDune2 = true;
-		inherit (cohttp) version src;
+  buildDunePackage {
+    pname = "cohttp-async";
+    useDune2 = true;
+    inherit (cohttp) version src;
 
-		buildInputs = [ ppx_sexp_conv ];
+    buildInputs = [ ppx_sexp_conv ];
 
-		propagatedBuildInputs = [ async cohttp conduit-async logs magic-mime uri ];
+    propagatedBuildInputs = [ async cohttp conduit-async logs magic-mime uri ];
 
-		meta = cohttp.meta // {
-			description = "CoHTTP implementation for the Async concurrency library";
-		};
-	}
+    meta = cohttp.meta // {
+      description = "CoHTTP implementation for the Async concurrency library";
+    };
+  }
diff --git a/pkgs/development/ocaml-modules/cohttp/default.nix b/pkgs/development/ocaml-modules/cohttp/default.nix
index 3fed7c55d45..e664d17f215 100644
--- a/pkgs/development/ocaml-modules/cohttp/default.nix
+++ b/pkgs/development/ocaml-modules/cohttp/default.nix
@@ -4,26 +4,26 @@
 }:
 
 buildDunePackage rec {
-	pname = "cohttp";
-	version = "2.5.4";
+  pname = "cohttp";
+  version = "2.5.4";
 
-	useDune2 = true;
+  useDune2 = true;
 
-	minimumOCamlVersion = "4.04.1";
+  minimumOCamlVersion = "4.04.1";
 
-	src = fetchurl {
-		url = "https://github.com/mirage/ocaml-cohttp/releases/download/v${version}/cohttp-v${version}.tbz";
-		sha256 = "1q04spmki5zis5p5m1vs77i3k7ijm134j62g61071vblwx25z17a";
-	};
+  src = fetchurl {
+    url = "https://github.com/mirage/ocaml-cohttp/releases/download/v${version}/cohttp-v${version}.tbz";
+    sha256 = "1q04spmki5zis5p5m1vs77i3k7ijm134j62g61071vblwx25z17a";
+  };
 
-	buildInputs = [ jsonm ppx_fields_conv ppx_sexp_conv ];
+  buildInputs = [ jsonm ppx_fields_conv ppx_sexp_conv ];
 
-	propagatedBuildInputs = [ base64 fieldslib re stringext uri-sexp stdlib-shims ];
+  propagatedBuildInputs = [ base64 fieldslib re stringext uri-sexp stdlib-shims ];
 
-	meta = {
-		description = "HTTP(S) library for Lwt, Async and Mirage";
-		license = lib.licenses.isc;
-		maintainers = [ lib.maintainers.vbgl ];
-		homepage = "https://github.com/mirage/ocaml-cohttp";
-	};
+  meta = {
+    description = "HTTP(S) library for Lwt, Async and Mirage";
+    license = lib.licenses.isc;
+    maintainers = [ lib.maintainers.vbgl ];
+    homepage = "https://github.com/mirage/ocaml-cohttp";
+  };
 }
diff --git a/pkgs/development/ocaml-modules/cohttp/lwt-unix.nix b/pkgs/development/ocaml-modules/cohttp/lwt-unix.nix
index 455a76ce94d..845df2a3f54 100644
--- a/pkgs/development/ocaml-modules/cohttp/lwt-unix.nix
+++ b/pkgs/development/ocaml-modules/cohttp/lwt-unix.nix
@@ -8,12 +8,12 @@ then cohttp-lwt
 else
 
 buildDunePackage {
-	pname = "cohttp-lwt-unix";
-	inherit (cohttp-lwt) version src meta;
+  pname = "cohttp-lwt-unix";
+  inherit (cohttp-lwt) version src meta;
 
-	useDune2 = true;
+  useDune2 = true;
 
-	buildInputs = [ cmdliner ppx_sexp_conv ];
+  buildInputs = [ cmdliner ppx_sexp_conv ];
 
-	propagatedBuildInputs = [ cohttp-lwt conduit-lwt-unix fmt magic-mime ];
+  propagatedBuildInputs = [ cohttp-lwt conduit-lwt-unix fmt magic-mime ];
 }
diff --git a/pkgs/development/ocaml-modules/cohttp/lwt.nix b/pkgs/development/ocaml-modules/cohttp/lwt.nix
index 04f81e8e8df..36831d94613 100644
--- a/pkgs/development/ocaml-modules/cohttp/lwt.nix
+++ b/pkgs/development/ocaml-modules/cohttp/lwt.nix
@@ -7,10 +7,10 @@ then throw "cohttp-lwt is not available for ppx_sexp_conv version ${ppx_sexp_con
 else
 
 buildDunePackage {
-	pname = "cohttp-lwt";
-	inherit (cohttp) version src useDune2 meta;
+  pname = "cohttp-lwt";
+  inherit (cohttp) version src useDune2 meta;
 
-	buildInputs = [ uri ppx_sexp_conv ];
+  buildInputs = [ uri ppx_sexp_conv ];
 
-	propagatedBuildInputs = [ cohttp ocaml_lwt logs ];
+  propagatedBuildInputs = [ cohttp ocaml_lwt logs ];
 }
diff --git a/pkgs/development/ocaml-modules/conduit/async.nix b/pkgs/development/ocaml-modules/conduit/async.nix
index e289b5d711d..c15ad0520fb 100644
--- a/pkgs/development/ocaml-modules/conduit/async.nix
+++ b/pkgs/development/ocaml-modules/conduit/async.nix
@@ -5,15 +5,15 @@ then conduit
 else
 
 buildDunePackage {
-	pname = "conduit-async";
-	useDune2 = true;
-	inherit (conduit) version src;
+  pname = "conduit-async";
+  useDune2 = true;
+  inherit (conduit) version src;
 
-	buildInputs = [ ppx_sexp_conv ];
+  buildInputs = [ ppx_sexp_conv ];
 
-	propagatedBuildInputs = [ async async_ssl conduit ];
+  propagatedBuildInputs = [ async async_ssl conduit ];
 
-	meta = conduit.meta // {
-		description = "A network connection establishment library for Async";
-	};
+  meta = conduit.meta // {
+    description = "A network connection establishment library for Async";
+  };
 }
diff --git a/pkgs/development/ocaml-modules/conduit/lwt-unix.nix b/pkgs/development/ocaml-modules/conduit/lwt-unix.nix
index 9f871a8ea9c..ab6449b50a1 100644
--- a/pkgs/development/ocaml-modules/conduit/lwt-unix.nix
+++ b/pkgs/development/ocaml-modules/conduit/lwt-unix.nix
@@ -4,17 +4,17 @@
 }:
 
 buildDunePackage {
-	pname = "conduit-lwt-unix";
-	inherit (conduit-lwt) version src minimumOCamlVersion;
+  pname = "conduit-lwt-unix";
+  inherit (conduit-lwt) version src minimumOCamlVersion;
 
-	useDune2 = true;
+  useDune2 = true;
 
-	buildInputs = [ ppx_sexp_conv ];
+  buildInputs = [ ppx_sexp_conv ];
 
-	propagatedBuildInputs =
-		[ conduit-lwt ocaml_lwt uri ipaddr ipaddr-sexp tls lwt_ssl ];
+  propagatedBuildInputs =
+    [ conduit-lwt ocaml_lwt uri ipaddr ipaddr-sexp tls lwt_ssl ];
 
-	meta = conduit-lwt.meta // {
-		description = "A network connection establishment library for Lwt_unix";
-	};
+  meta = conduit-lwt.meta // {
+    description = "A network connection establishment library for Lwt_unix";
+  };
 }
diff --git a/pkgs/development/ocaml-modules/conduit/lwt.nix b/pkgs/development/ocaml-modules/conduit/lwt.nix
index 512aa60bb66..2f18027a67b 100644
--- a/pkgs/development/ocaml-modules/conduit/lwt.nix
+++ b/pkgs/development/ocaml-modules/conduit/lwt.nix
@@ -1,14 +1,14 @@
 { buildDunePackage, ppx_sexp_conv, conduit, ocaml_lwt, sexplib }:
 
 buildDunePackage {
-	pname = "conduit-lwt";
-	inherit (conduit) version src useDune2 minimumOCamlVersion;
+  pname = "conduit-lwt";
+  inherit (conduit) version src useDune2 minimumOCamlVersion;
 
-	buildInputs = [ ppx_sexp_conv ];
+  buildInputs = [ ppx_sexp_conv ];
 
-	propagatedBuildInputs = [ conduit ocaml_lwt sexplib ];
+  propagatedBuildInputs = [ conduit ocaml_lwt sexplib ];
 
-	meta = conduit.meta // {
-		description = "A network connection establishment library for Lwt";
-	};
+  meta = conduit.meta // {
+    description = "A network connection establishment library for Lwt";
+  };
 }
diff --git a/pkgs/development/ocaml-modules/cstruct/lwt.nix b/pkgs/development/ocaml-modules/cstruct/lwt.nix
index f340bfcda25..113df1e89b5 100644
--- a/pkgs/development/ocaml-modules/cstruct/lwt.nix
+++ b/pkgs/development/ocaml-modules/cstruct/lwt.nix
@@ -5,10 +5,10 @@ then cstruct
 else
 
 buildDunePackage {
-	pname = "cstruct-lwt";
-	inherit (cstruct) version src useDune2 meta;
+  pname = "cstruct-lwt";
+  inherit (cstruct) version src useDune2 meta;
 
   minimumOCamlVersion = "4.02";
 
-	propagatedBuildInputs = [ cstruct lwt ];
+  propagatedBuildInputs = [ cstruct lwt ];
 }
diff --git a/pkgs/development/ocaml-modules/cstruct/ppx.nix b/pkgs/development/ocaml-modules/cstruct/ppx.nix
index feb8feac6b6..44343812090 100644
--- a/pkgs/development/ocaml-modules/cstruct/ppx.nix
+++ b/pkgs/development/ocaml-modules/cstruct/ppx.nix
@@ -5,10 +5,10 @@ then cstruct
 else
 
 buildDunePackage {
-	pname = "ppx_cstruct";
-	inherit (cstruct) version src useDune2 meta;
+  pname = "ppx_cstruct";
+  inherit (cstruct) version src useDune2 meta;
 
-	minimumOCamlVersion = "4.03";
+  minimumOCamlVersion = "4.03";
 
-	propagatedBuildInputs = [ cstruct ppx_tools_versioned ppxlib sexplib ];
+  propagatedBuildInputs = [ cstruct ppx_tools_versioned ppxlib sexplib ];
 }
diff --git a/pkgs/development/ocaml-modules/cstruct/sexp.nix b/pkgs/development/ocaml-modules/cstruct/sexp.nix
index 04bb10d6f75..742cb6522eb 100644
--- a/pkgs/development/ocaml-modules/cstruct/sexp.nix
+++ b/pkgs/development/ocaml-modules/cstruct/sexp.nix
@@ -5,12 +5,11 @@ then cstruct
 else
 
 buildDunePackage rec {
-	pname = "cstruct-sexp";
-	inherit (cstruct) version src useDune2 meta;
+  pname = "cstruct-sexp";
+  inherit (cstruct) version src useDune2 meta;
 
-	doCheck = lib.versionAtLeast ocaml.version "4.03";
-	checkInputs = lib.optional doCheck alcotest;
+  doCheck = lib.versionAtLeast ocaml.version "4.03";
+  checkInputs = lib.optional doCheck alcotest;
 
-	propagatedBuildInputs = [ cstruct sexplib ];
+  propagatedBuildInputs = [ cstruct sexplib ];
 }
-
diff --git a/pkgs/development/ocaml-modules/cstruct/unix.nix b/pkgs/development/ocaml-modules/cstruct/unix.nix
index b7e0df0185c..1ea27bb04de 100644
--- a/pkgs/development/ocaml-modules/cstruct/unix.nix
+++ b/pkgs/development/ocaml-modules/cstruct/unix.nix
@@ -5,10 +5,10 @@ then cstruct
 else
 
 buildDunePackage {
-	pname = "cstruct-unix";
-	inherit (cstruct) version src useDune2 meta;
+  pname = "cstruct-unix";
+  inherit (cstruct) version src useDune2 meta;
 
-	minimumOCamlVersion = "4.06";
+  minimumOCamlVersion = "4.06";
 
-	propagatedBuildInputs = [ cstruct ];
+  propagatedBuildInputs = [ cstruct ];
 }
diff --git a/pkgs/development/ocaml-modules/csv/default.nix b/pkgs/development/ocaml-modules/csv/default.nix
index 8cf2918989e..59562453175 100644
--- a/pkgs/development/ocaml-modules/csv/default.nix
+++ b/pkgs/development/ocaml-modules/csv/default.nix
@@ -2,19 +2,19 @@
 
 buildDunePackage rec {
   pname = "csv";
-	version = "2.4";
+  version = "2.4";
 
-	useDune2 = true;
+  useDune2 = true;
 
-	src = fetchurl {
-		url = "https://github.com/Chris00/ocaml-${pname}/releases/download/${version}/csv-${version}.tbz";
-		sha256 = "13m9n8mdss6jfbiw7d5bybxn4n85vmg4zw7dc968qrgjfy0w9zhk";
-	};
+  src = fetchurl {
+    url = "https://github.com/Chris00/ocaml-${pname}/releases/download/${version}/csv-${version}.tbz";
+    sha256 = "13m9n8mdss6jfbiw7d5bybxn4n85vmg4zw7dc968qrgjfy0w9zhk";
+  };
 
-	meta = {
-		description = "A pure OCaml library to read and write CSV files";
-		license = lib.licenses.lgpl21;
-		maintainers = [ lib.maintainers.vbgl ];
-		homepage = "https://github.com/Chris00/ocaml-csv";
-	};
+  meta = {
+    description = "A pure OCaml library to read and write CSV files";
+    license = lib.licenses.lgpl21;
+    maintainers = [ lib.maintainers.vbgl ];
+    homepage = "https://github.com/Chris00/ocaml-csv";
+  };
 }
diff --git a/pkgs/development/ocaml-modules/decompress/default.nix b/pkgs/development/ocaml-modules/decompress/default.nix
index a3bf3456ed0..067fac33d45 100644
--- a/pkgs/development/ocaml-modules/decompress/default.nix
+++ b/pkgs/development/ocaml-modules/decompress/default.nix
@@ -4,25 +4,25 @@
 }:
 
 buildDunePackage rec {
-	version = "0.9.0";
-	pname = "decompress";
+  version = "0.9.0";
+  pname = "decompress";
 
-	useDune2 = true;
+  useDune2 = true;
 
-	src = fetchurl {
-		url = "https://github.com/mirage/decompress/releases/download/v${version}/decompress-v${version}.tbz";
-		sha256 = "0fryhcvv96vfca51c7kqdn3n3canqsbbvfbi75ya6lca4lmpipbh";
-	};
+  src = fetchurl {
+    url = "https://github.com/mirage/decompress/releases/download/v${version}/decompress-v${version}.tbz";
+    sha256 = "0fryhcvv96vfca51c7kqdn3n3canqsbbvfbi75ya6lca4lmpipbh";
+  };
 
-	buildInputs = [ cmdliner ];
-	propagatedBuildInputs = [ checkseum ];
-	checkInputs = lib.optionals doCheck [ alcotest bos camlzip mmap re ];
-	doCheck = true;
+  buildInputs = [ cmdliner ];
+  propagatedBuildInputs = [ checkseum ];
+  checkInputs = lib.optionals doCheck [ alcotest bos camlzip mmap re ];
+  doCheck = true;
 
-	meta = {
-		description = "Pure OCaml implementation of Zlib";
-		license = lib.licenses.mit;
-		maintainers = [ lib.maintainers.vbgl ];
-		homepage = "https://github.com/mirage/decompress";
-	};
+  meta = {
+    description = "Pure OCaml implementation of Zlib";
+    license = lib.licenses.mit;
+    maintainers = [ lib.maintainers.vbgl ];
+    homepage = "https://github.com/mirage/decompress";
+  };
 }
diff --git a/pkgs/development/ocaml-modules/dolmen/default.nix b/pkgs/development/ocaml-modules/dolmen/default.nix
index d4a47abcafa..a1a73bfe218 100644
--- a/pkgs/development/ocaml-modules/dolmen/default.nix
+++ b/pkgs/development/ocaml-modules/dolmen/default.nix
@@ -1,27 +1,27 @@
 { stdenv, lib, fetchFromGitHub, ocaml, findlib, ocamlbuild, menhir }:
 
 stdenv.mkDerivation rec {
-	name = "ocaml${ocaml.version}-dolmen-${version}";
-	version = "0.2";
-	src = fetchFromGitHub {
-		owner = "Gbury";
-		repo = "dolmen";
-		rev = "v${version}";
-		sha256 = "1b9mf8p6mic0n76acx8x82hhgm2n40sdv0jri95im65l52223saf";
-	};
+  name = "ocaml${ocaml.version}-dolmen-${version}";
+  version = "0.2";
+  src = fetchFromGitHub {
+    owner = "Gbury";
+    repo = "dolmen";
+    rev = "v${version}";
+    sha256 = "1b9mf8p6mic0n76acx8x82hhgm2n40sdv0jri95im65l52223saf";
+  };
 
-	buildInputs = [ ocaml findlib ocamlbuild ];
-	propagatedBuildInputs = [ menhir ];
+  buildInputs = [ ocaml findlib ocamlbuild ];
+  propagatedBuildInputs = [ menhir ];
 
-	makeFlags = [ "-C" "src" ];
+  makeFlags = [ "-C" "src" ];
 
-	createFindlibDestdir = true;
+  createFindlibDestdir = true;
 
-	meta = {
-		description = "An OCaml library providing clean and flexible parsers for input languages";
-		license = lib.licenses.bsd2;
-		maintainers = [ lib.maintainers.vbgl ];
-		inherit (src.meta) homepage;
-		inherit (ocaml.meta) platforms;
-	};
+  meta = {
+    description = "An OCaml library providing clean and flexible parsers for input languages";
+    license = lib.licenses.bsd2;
+    maintainers = [ lib.maintainers.vbgl ];
+    inherit (src.meta) homepage;
+    inherit (ocaml.meta) platforms;
+  };
 }
diff --git a/pkgs/development/ocaml-modules/expat/default.nix b/pkgs/development/ocaml-modules/expat/default.nix
index 9675fa88151..1812473e78b 100644
--- a/pkgs/development/ocaml-modules/expat/default.nix
+++ b/pkgs/development/ocaml-modules/expat/default.nix
@@ -1,32 +1,32 @@
 { stdenv, lib, fetchFromGitHub, expat, ocaml, findlib, ounit }:
 
 stdenv.mkDerivation rec {
-	name = "ocaml${ocaml.version}-expat-${version}";
-	version = "1.1.0";
+  name = "ocaml${ocaml.version}-expat-${version}";
+  version = "1.1.0";
 
-	src = fetchFromGitHub {
-		owner = "whitequark";
-		repo = "ocaml-expat";
-		rev = "v${version}";
-		sha256 = "07wm9663z744ya6z2lhiz5hbmc76kkipg04j9vw9dqpd1y1f2x3q";
-	};
+  src = fetchFromGitHub {
+    owner = "whitequark";
+    repo = "ocaml-expat";
+    rev = "v${version}";
+    sha256 = "07wm9663z744ya6z2lhiz5hbmc76kkipg04j9vw9dqpd1y1f2x3q";
+  };
 
-	prePatch = ''
-		substituteInPlace Makefile --replace "gcc" "\$(CC)"
-	'';
+  prePatch = ''
+    substituteInPlace Makefile --replace "gcc" "\$(CC)"
+  '';
 
-	buildInputs = [ ocaml findlib expat ounit ];
+  buildInputs = [ ocaml findlib expat ounit ];
 
-	doCheck = !lib.versionAtLeast ocaml.version "4.06";
-	checkTarget = "testall";
+  doCheck = !lib.versionAtLeast ocaml.version "4.06";
+  checkTarget = "testall";
 
-	createFindlibDestdir = true;
+  createFindlibDestdir = true;
 
-	meta = {
-		description = "OCaml wrapper for the Expat XML parsing library";
-		license = lib.licenses.mit;
-		maintainers = [ lib.maintainers.vbgl ];
-		inherit (src.meta) homepage;
-		inherit (ocaml.meta) platforms;
-	};
+  meta = {
+    description = "OCaml wrapper for the Expat XML parsing library";
+    license = lib.licenses.mit;
+    maintainers = [ lib.maintainers.vbgl ];
+    inherit (src.meta) homepage;
+    inherit (ocaml.meta) platforms;
+  };
 }
diff --git a/pkgs/development/ocaml-modules/git-http/default.nix b/pkgs/development/ocaml-modules/git-http/default.nix
index 3b127c65006..54bd5c2da23 100644
--- a/pkgs/development/ocaml-modules/git-http/default.nix
+++ b/pkgs/development/ocaml-modules/git-http/default.nix
@@ -1,15 +1,15 @@
 { buildDunePackage, git, cohttp, cohttp-lwt }:
 
 buildDunePackage {
-	pname = "git-http";
-	inherit (git) version src minimumOCamlVersion;
+  pname = "git-http";
+  inherit (git) version src minimumOCamlVersion;
 
-	useDune2 = true;
+  useDune2 = true;
 
-	propagatedBuildInputs = [ git cohttp cohttp-lwt ];
+  propagatedBuildInputs = [ git cohttp cohttp-lwt ];
 
-	meta = {
-		description = "Client implementation of the “Smart” HTTP Git protocol in pure OCaml";
-		inherit (git.meta) homepage license maintainers;
-	};
+  meta = {
+    description = "Client implementation of the “Smart” HTTP Git protocol in pure OCaml";
+    inherit (git.meta) homepage license maintainers;
+  };
 }
diff --git a/pkgs/development/ocaml-modules/git-unix/default.nix b/pkgs/development/ocaml-modules/git-unix/default.nix
index 0633b8af8f0..6ee6ef21c15 100644
--- a/pkgs/development/ocaml-modules/git-unix/default.nix
+++ b/pkgs/development/ocaml-modules/git-unix/default.nix
@@ -4,17 +4,17 @@
 }:
 
 buildDunePackage {
-	pname = "git-unix";
-	inherit (git-http) version src minimumOCamlVersion;
+  pname = "git-unix";
+  inherit (git-http) version src minimumOCamlVersion;
 
-	useDune2 = true;
+  useDune2 = true;
 
-	propagatedBuildInputs = [ mmap cmdliner git-http cohttp cohttp-lwt-unix mtime ];
-	checkInputs = [ alcotest mirage-crypto-rng tls io-page git-binary ];
-	doCheck = !stdenv.isAarch64;
+  propagatedBuildInputs = [ mmap cmdliner git-http cohttp cohttp-lwt-unix mtime ];
+  checkInputs = [ alcotest mirage-crypto-rng tls io-page git-binary ];
+  doCheck = !stdenv.isAarch64;
 
-	meta = {
-		description = "Unix backend for the Git protocol(s)";
-		inherit (git-http.meta) homepage license maintainers;
-	};
+  meta = {
+    description = "Unix backend for the Git protocol(s)";
+    inherit (git-http.meta) homepage license maintainers;
+  };
 }
diff --git a/pkgs/development/ocaml-modules/git/default.nix b/pkgs/development/ocaml-modules/git/default.nix
index ba2372090d8..f5cb452f1a9 100644
--- a/pkgs/development/ocaml-modules/git/default.nix
+++ b/pkgs/development/ocaml-modules/git/default.nix
@@ -6,28 +6,28 @@
 }:
 
 buildDunePackage rec {
-	pname = "git";
-	version = "2.1.3";
+  pname = "git";
+  version = "2.1.3";
 
-	minimumOCamlVersion = "4.07";
-	useDune2 = true;
+  minimumOCamlVersion = "4.07";
+  useDune2 = true;
 
-	src = fetchurl {
-		url = "https://github.com/mirage/ocaml-git/releases/download/${version}/git-${version}.tbz";
-		sha256 = "1ppllv65vrkfrmx46aiq5879isffcjmg92z9rv2kh92a83h4lqax";
-	};
+  src = fetchurl {
+    url = "https://github.com/mirage/ocaml-git/releases/download/${version}/git-${version}.tbz";
+    sha256 = "1ppllv65vrkfrmx46aiq5879isffcjmg92z9rv2kh92a83h4lqax";
+  };
 
-	propagatedBuildInputs = [
-		angstrom astring checkseum cstruct decompress digestif encore duff fmt fpath
-		hex ke logs lru ocaml_lwt ocamlgraph ocplib-endian uri rresult stdlib-shims
-	];
-	checkInputs = [ alcotest mtime mirage-crypto-rng tls git-binary ];
-	doCheck = !stdenv.isAarch64;
+  propagatedBuildInputs = [
+    angstrom astring checkseum cstruct decompress digestif encore duff fmt fpath
+    hex ke logs lru ocaml_lwt ocamlgraph ocplib-endian uri rresult stdlib-shims
+  ];
+  checkInputs = [ alcotest mtime mirage-crypto-rng tls git-binary ];
+  doCheck = !stdenv.isAarch64;
 
-	meta = {
-		description = "Git format and protocol in pure OCaml";
-		license = lib.licenses.isc;
-		maintainers = [ lib.maintainers.vbgl ];
-		homepage = "https://github.com/mirage/ocaml-git";
-	};
+  meta = {
+    description = "Git format and protocol in pure OCaml";
+    license = lib.licenses.isc;
+    maintainers = [ lib.maintainers.vbgl ];
+    homepage = "https://github.com/mirage/ocaml-git";
+  };
 }
diff --git a/pkgs/development/ocaml-modules/hmap/default.nix b/pkgs/development/ocaml-modules/hmap/default.nix
index 563d39909c8..67622a8ef6a 100644
--- a/pkgs/development/ocaml-modules/hmap/default.nix
+++ b/pkgs/development/ocaml-modules/hmap/default.nix
@@ -13,7 +13,7 @@ in
 assert lib.versionOlder minimumSupportedOcamlVersion ocaml.version;
 
 stdenv.mkDerivation rec {
-	pname = "hmap";
+  pname = "hmap";
   version = "0.8.1";
   name = "ocaml${ocaml.version}-${pname}-${version}";
 
@@ -22,7 +22,7 @@ stdenv.mkDerivation rec {
     sha256 = "10xyjy4ab87z7jnghy0wnla9wrmazgyhdwhr4hdmxxdn28dxn03a";
   };
 
-	buildInputs = [ ocaml ocamlbuild findlib topkg ];
+  buildInputs = [ ocaml ocamlbuild findlib topkg ];
 
   inherit (topkg) installPhase;
 
@@ -33,9 +33,9 @@ stdenv.mkDerivation rec {
   checkPhase = "${topkg.run} test";
 
   meta = {
-		description = "Heterogeneous value maps for OCaml";
+    description = "Heterogeneous value maps for OCaml";
     homepage = "https://erratique.ch/software/hmap";
-		license = lib.licenses.isc;
-		maintainers = [ lib.maintainers.pmahoney ];
+    license = lib.licenses.isc;
+    maintainers = [ lib.maintainers.pmahoney ];
   };
 }
diff --git a/pkgs/development/ocaml-modules/inifiles/default.nix b/pkgs/development/ocaml-modules/inifiles/default.nix
index c141c73506d..ad9bd3e2dc7 100644
--- a/pkgs/development/ocaml-modules/inifiles/default.nix
+++ b/pkgs/development/ocaml-modules/inifiles/default.nix
@@ -1,28 +1,28 @@
 { stdenv, lib, fetchurl, fetchpatch, ocaml, findlib, ocaml_pcre }:
 
 stdenv.mkDerivation {
-	name = "ocaml${ocaml.version}-inifiles-1.2";
+  name = "ocaml${ocaml.version}-inifiles-1.2";
 
-	src = fetchurl {
-		url = "http://archive.ubuntu.com/ubuntu/pool/universe/o/ocaml-inifiles/ocaml-inifiles_1.2.orig.tar.gz";
-		sha256 = "0jhzgiypmh6hwsv1zpiq77fi0cvcmwbiy5x0yg7mz6p3dh1dmkns";
-	};
+  src = fetchurl {
+    url = "http://archive.ubuntu.com/ubuntu/pool/universe/o/ocaml-inifiles/ocaml-inifiles_1.2.orig.tar.gz";
+    sha256 = "0jhzgiypmh6hwsv1zpiq77fi0cvcmwbiy5x0yg7mz6p3dh1dmkns";
+  };
 
-	patches = [ (fetchpatch {
-		url = "https://raw.githubusercontent.com/ocaml/opam-repository/master/packages/ocaml-inifiles/ocaml-inifiles.1.2/files/ocaml-inifiles.diff";
-		sha256 = "037kk3172s187w8vwsykdxlpklxzc7m7np57sapk499d8adzdgwn";
-	})];
+  patches = [ (fetchpatch {
+    url = "https://raw.githubusercontent.com/ocaml/opam-repository/master/packages/ocaml-inifiles/ocaml-inifiles.1.2/files/ocaml-inifiles.diff";
+    sha256 = "037kk3172s187w8vwsykdxlpklxzc7m7np57sapk499d8adzdgwn";
+  })];
 
-	buildInputs = [ ocaml findlib ];
-	propagatedBuildInputs = [ ocaml_pcre ];
+  buildInputs = [ ocaml findlib ];
+  propagatedBuildInputs = [ ocaml_pcre ];
 
-	buildFlags = [ "all" "opt" ];
+  buildFlags = [ "all" "opt" ];
 
-	createFindlibDestdir = true;
+  createFindlibDestdir = true;
 
-	meta = {
-		description = "A small OCaml library to read and write .ini files";
-		license = lib.licenses.lgpl21Plus;
-		inherit (ocaml.meta) platforms;
-	};
+  meta = {
+    description = "A small OCaml library to read and write .ini files";
+    license = lib.licenses.lgpl21Plus;
+    inherit (ocaml.meta) platforms;
+  };
 }
diff --git a/pkgs/development/ocaml-modules/inotify/default.nix b/pkgs/development/ocaml-modules/inotify/default.nix
index d43d5d9cf8e..8910b720a84 100644
--- a/pkgs/development/ocaml-modules/inotify/default.nix
+++ b/pkgs/development/ocaml-modules/inotify/default.nix
@@ -4,41 +4,41 @@
 }:
 
 stdenv.mkDerivation rec {
-	version = "2.3";
-	name = "ocaml${ocaml.version}-inotify-${version}";
-
-	src = fetchFromGitHub {
-		owner = "whitequark";
-		repo = "ocaml-inotify";
-		rev = "v${version}";
-		sha256 = "1s6vmqpx19hxzsi30jvp3h7p56rqnxfhfddpcls4nz8sqca1cz5y";
-	};
-
-	patches = [ (fetchpatch {
-		url = "https://github.com/whitequark/ocaml-inotify/commit/716c8002cc1652f58eb0c400ae92e04003cba8c9.patch";
-		sha256 = "04lfxrrsmk2mc704kaln8jqx93jc4bkxhijmfy2d4cmk1cim7r6k";
-	}) ];
-
-	buildInputs = [ ocaml findlib ocamlbuild ocaml_lwt ];
-	checkInputs = [ ounit fileutils ];
-
-	configureFlags = [ "--enable-lwt"
-	  (lib.optionalString doCheck "--enable-tests") ];
-
-	postConfigure = lib.optionalString doCheck ''
-	  echo '<lib_test/test_inotify_lwt.*>: pkg_threads' | tee -a _tags
-	'';
-
-	doCheck = true;
-	checkTarget = "test";
-
-	createFindlibDestdir = true;
-
-	meta = {
-		description = "Bindings for Linux’s filesystem monitoring interface, inotify";
-		license = lib.licenses.lgpl21;
-		maintainers = [ lib.maintainers.vbgl ];
-		inherit (src.meta) homepage;
-		platforms = lib.platforms.linux;
-	};
+  version = "2.3";
+  name = "ocaml${ocaml.version}-inotify-${version}";
+
+  src = fetchFromGitHub {
+    owner = "whitequark";
+    repo = "ocaml-inotify";
+    rev = "v${version}";
+    sha256 = "1s6vmqpx19hxzsi30jvp3h7p56rqnxfhfddpcls4nz8sqca1cz5y";
+  };
+
+  patches = [ (fetchpatch {
+    url = "https://github.com/whitequark/ocaml-inotify/commit/716c8002cc1652f58eb0c400ae92e04003cba8c9.patch";
+    sha256 = "04lfxrrsmk2mc704kaln8jqx93jc4bkxhijmfy2d4cmk1cim7r6k";
+  }) ];
+
+  buildInputs = [ ocaml findlib ocamlbuild ocaml_lwt ];
+  checkInputs = [ ounit fileutils ];
+
+  configureFlags = [ "--enable-lwt"
+    (lib.optionalString doCheck "--enable-tests") ];
+
+  postConfigure = lib.optionalString doCheck ''
+    echo '<lib_test/test_inotify_lwt.*>: pkg_threads' | tee -a _tags
+  '';
+
+  doCheck = true;
+  checkTarget = "test";
+
+  createFindlibDestdir = true;
+
+  meta = {
+    description = "Bindings for Linux’s filesystem monitoring interface, inotify";
+    license = lib.licenses.lgpl21;
+    maintainers = [ lib.maintainers.vbgl ];
+    inherit (src.meta) homepage;
+    platforms = lib.platforms.linux;
+  };
 }
diff --git a/pkgs/development/ocaml-modules/integers/default.nix b/pkgs/development/ocaml-modules/integers/default.nix
index ca14c3ca873..ad6f1f9f813 100644
--- a/pkgs/development/ocaml-modules/integers/default.nix
+++ b/pkgs/development/ocaml-modules/integers/default.nix
@@ -1,18 +1,18 @@
 { lib, fetchzip, buildDunePackage }:
 
 buildDunePackage rec {
-	pname = "integers";
-	version = "0.4.0";
+  pname = "integers";
+  version = "0.4.0";
 
-	src = fetchzip {
-		url = "https://github.com/ocamllabs/ocaml-integers/archive/${version}.tar.gz";
-		sha256 = "0yp3ab0ph7mp5741g7333x4nx8djjvxzpnv3zvsndyzcycspn9dd";
-	};
+  src = fetchzip {
+    url = "https://github.com/ocamllabs/ocaml-integers/archive/${version}.tar.gz";
+    sha256 = "0yp3ab0ph7mp5741g7333x4nx8djjvxzpnv3zvsndyzcycspn9dd";
+  };
 
-	meta = {
-		description = "Various signed and unsigned integer types for OCaml";
-		license = lib.licenses.mit;
-		homepage = "https://github.com/ocamllabs/ocaml-integers";
-		maintainers = [ lib.maintainers.vbgl ];
-	};
+  meta = {
+    description = "Various signed and unsigned integer types for OCaml";
+    license = lib.licenses.mit;
+    homepage = "https://github.com/ocamllabs/ocaml-integers";
+    maintainers = [ lib.maintainers.vbgl ];
+  };
 }
diff --git a/pkgs/development/ocaml-modules/lwt_react/default.nix b/pkgs/development/ocaml-modules/lwt_react/default.nix
index 4d82db043e8..5513935133e 100644
--- a/pkgs/development/ocaml-modules/lwt_react/default.nix
+++ b/pkgs/development/ocaml-modules/lwt_react/default.nix
@@ -1,22 +1,22 @@
 { stdenv, fetchzip, ocaml, findlib, ocamlbuild, lwt, react }:
 
 stdenv.mkDerivation rec {
-	version = "1.0.1";
-	name = "ocaml${ocaml.version}-lwt_react-${version}";
-	src = fetchzip {
-		url = "https://github.com/ocsigen/lwt/releases/download/3.0.0/lwt_react-1.0.1.tar.gz";
-		sha256 = "1bbz7brvdskf4angzn3q2s2s6qdnx7x8m8syayysh23gwv4c7v31";
-	};
+  version = "1.0.1";
+  name = "ocaml${ocaml.version}-lwt_react-${version}";
+  src = fetchzip {
+    url = "https://github.com/ocsigen/lwt/releases/download/3.0.0/lwt_react-1.0.1.tar.gz";
+    sha256 = "1bbz7brvdskf4angzn3q2s2s6qdnx7x8m8syayysh23gwv4c7v31";
+  };
 
-	buildInputs = [ ocaml findlib ocamlbuild ];
+  buildInputs = [ ocaml findlib ocamlbuild ];
 
-	propagatedBuildInputs = [ lwt react ];
+  propagatedBuildInputs = [ lwt react ];
 
-	createFindlibDestdir = true;
+  createFindlibDestdir = true;
 
-	meta = {
-		description = "Helpers for using React with Lwt";
-		inherit (lwt.meta) homepage license maintainers;
+  meta = {
+    description = "Helpers for using React with Lwt";
+    inherit (lwt.meta) homepage license maintainers;
     inherit (ocaml.meta) platforms;
-	};
+  };
 }
diff --git a/pkgs/development/ocaml-modules/num/default.nix b/pkgs/development/ocaml-modules/num/default.nix
index b553677fad4..e2c7b439c69 100644
--- a/pkgs/development/ocaml-modules/num/default.nix
+++ b/pkgs/development/ocaml-modules/num/default.nix
@@ -1,31 +1,31 @@
 { stdenv, lib, fetchFromGitHub, fetchpatch, ocaml, findlib, withStatic ? false }:
 
 stdenv.mkDerivation rec {
-	version = "1.1";
-	name = "ocaml${ocaml.version}-num-${version}";
-	src = fetchFromGitHub {
-		owner = "ocaml";
-		repo = "num";
-		rev = "v${version}";
-		sha256 = "0a4mhxgs5hi81d227aygjx35696314swas0vzy3ig809jb7zq4h0";
-	};
+  version = "1.1";
+  name = "ocaml${ocaml.version}-num-${version}";
+  src = fetchFromGitHub {
+    owner = "ocaml";
+    repo = "num";
+    rev = "v${version}";
+    sha256 = "0a4mhxgs5hi81d227aygjx35696314swas0vzy3ig809jb7zq4h0";
+  };
 
-	patches = [ (fetchpatch {
-			url = "https://github.com/ocaml/num/commit/6d4c6d476c061298e6385e8a0864f083194b9307.patch";
-			sha256 = "18zlvb5n327q8y3c52js5dvyy29ssld1l53jqng8m9w1k24ypi0b";
-		})
-	] ++ lib.optional withStatic ./enable-static.patch;
+  patches = [ (fetchpatch {
+      url = "https://github.com/ocaml/num/commit/6d4c6d476c061298e6385e8a0864f083194b9307.patch";
+      sha256 = "18zlvb5n327q8y3c52js5dvyy29ssld1l53jqng8m9w1k24ypi0b";
+    })
+  ] ++ lib.optional withStatic ./enable-static.patch;
 
-	nativeBuildInputs = [ ocaml findlib ];
+  nativeBuildInputs = [ ocaml findlib ];
   buildInputs = [ ocaml findlib ];
 
-	createFindlibDestdir = true;
+  createFindlibDestdir = true;
 
 
-	meta = {
-		description = "Legacy Num library for arbitrary-precision integer and rational arithmetic";
-		license = lib.licenses.lgpl21;
-		inherit (ocaml.meta) platforms;
-		inherit (src.meta) homepage;
-	};
+  meta = {
+    description = "Legacy Num library for arbitrary-precision integer and rational arithmetic";
+    license = lib.licenses.lgpl21;
+    inherit (ocaml.meta) platforms;
+    inherit (src.meta) homepage;
+  };
 }
diff --git a/pkgs/development/ocaml-modules/ocp-ocamlres/default.nix b/pkgs/development/ocaml-modules/ocp-ocamlres/default.nix
index ae06978dacd..be217812834 100644
--- a/pkgs/development/ocaml-modules/ocp-ocamlres/default.nix
+++ b/pkgs/development/ocaml-modules/ocp-ocamlres/default.nix
@@ -5,26 +5,26 @@ then throw "ocp-ocamlres is not available for OCaml ${ocaml.version}"
 else
 
 stdenv.mkDerivation rec {
-	name = "ocaml${ocaml.version}-ocp-ocamlres-${version}";
-	version = "0.4";
-	src = fetchFromGitHub {
-		owner = "OCamlPro";
-		repo = "ocp-ocamlres";
-		rev = "v${version}";
-		sha256 = "0smfwrj8qhzknhzawygxi0vgl2af4vyi652fkma59rzjpvscqrnn";
-	};
+  name = "ocaml${ocaml.version}-ocp-ocamlres-${version}";
+  version = "0.4";
+  src = fetchFromGitHub {
+    owner = "OCamlPro";
+    repo = "ocp-ocamlres";
+    rev = "v${version}";
+    sha256 = "0smfwrj8qhzknhzawygxi0vgl2af4vyi652fkma59rzjpvscqrnn";
+  };
 
-	buildInputs = [ ocaml findlib astring pprint ];
-	createFindlibDestdir = true;
+  buildInputs = [ ocaml findlib astring pprint ];
+  createFindlibDestdir = true;
 
-	installFlags = [ "BINDIR=$(out)/bin" ];
-	preInstall = "mkdir -p $out/bin";
+  installFlags = [ "BINDIR=$(out)/bin" ];
+  preInstall = "mkdir -p $out/bin";
 
-	meta = {
-		description = "A simple tool and library to embed files and directories inside OCaml executables";
-		license = lib.licenses.lgpl3Plus;
-		homepage = "https://www.typerex.org/ocp-ocamlres.html";
-		maintainers = [ lib.maintainers.vbgl ];
-		inherit (ocaml.meta) platforms;
-	};
+  meta = {
+    description = "A simple tool and library to embed files and directories inside OCaml executables";
+    license = lib.licenses.lgpl3Plus;
+    homepage = "https://www.typerex.org/ocp-ocamlres.html";
+    maintainers = [ lib.maintainers.vbgl ];
+    inherit (ocaml.meta) platforms;
+  };
 }
diff --git a/pkgs/development/ocaml-modules/ocplib-json-typed/default.nix b/pkgs/development/ocaml-modules/ocplib-json-typed/default.nix
index 6a3de6292d8..75554d25bf2 100644
--- a/pkgs/development/ocaml-modules/ocplib-json-typed/default.nix
+++ b/pkgs/development/ocaml-modules/ocplib-json-typed/default.nix
@@ -1,22 +1,22 @@
 { lib, buildDunePackage, fetchFromGitHub, uri }:
 
 buildDunePackage rec {
-	pname = "ocplib-json-typed";
-	version = "0.7.1";
-	useDune2 = true;
-	src = fetchFromGitHub {
-		owner = "OCamlPro";
-		repo = "ocplib-json-typed";
-		rev = "v${version}";
-		sha256 = "1gv0vqqy9lh7isaqg54b3lam2sh7nfjjazi6x7zn6bh5f77g1p5q";
-	};
+  pname = "ocplib-json-typed";
+  version = "0.7.1";
+  useDune2 = true;
+  src = fetchFromGitHub {
+    owner = "OCamlPro";
+    repo = "ocplib-json-typed";
+    rev = "v${version}";
+    sha256 = "1gv0vqqy9lh7isaqg54b3lam2sh7nfjjazi6x7zn6bh5f77g1p5q";
+  };
 
-	propagatedBuildInputs = [ uri ];
+  propagatedBuildInputs = [ uri ];
 
-	meta = {
-		description = "A collection of type-aware JSON utilities for OCaml";
-		license = lib.licenses.lgpl21;
-		maintainers = [ lib.maintainers.vbgl ];
-		inherit (src.meta) homepage;
-	};
+  meta = {
+    description = "A collection of type-aware JSON utilities for OCaml";
+    license = lib.licenses.lgpl21;
+    maintainers = [ lib.maintainers.vbgl ];
+    inherit (src.meta) homepage;
+  };
 }
diff --git a/pkgs/development/ocaml-modules/octavius/default.nix b/pkgs/development/ocaml-modules/octavius/default.nix
index 01161214a4f..c71c8f35f4b 100644
--- a/pkgs/development/ocaml-modules/octavius/default.nix
+++ b/pkgs/development/ocaml-modules/octavius/default.nix
@@ -4,21 +4,21 @@ if !lib.versionAtLeast ocaml.version "4.03"
 then throw "octavius is not available for OCaml ${ocaml.version}" else
 
 stdenv.mkDerivation {
-	name = "ocaml${ocaml.version}-octavius-0.2.0";
-	src = fetchurl {
-		url = "https://github.com/ocaml-doc/octavius/releases/download/v0.2.0/octavius-0.2.0.tbz";
-		sha256 = "02milzzlr4xk5aymg2fjz27f528d5pyscqvld3q0dm41zcpkz5ml";
-	};
+  name = "ocaml${ocaml.version}-octavius-0.2.0";
+  src = fetchurl {
+    url = "https://github.com/ocaml-doc/octavius/releases/download/v0.2.0/octavius-0.2.0.tbz";
+    sha256 = "02milzzlr4xk5aymg2fjz27f528d5pyscqvld3q0dm41zcpkz5ml";
+  };
 
-	buildInputs = [ ocaml findlib ocamlbuild topkg ];
+  buildInputs = [ ocaml findlib ocamlbuild topkg ];
 
-	inherit (topkg) buildPhase installPhase;
+  inherit (topkg) buildPhase installPhase;
 
-	meta = {
-		description = "Ocamldoc comment syntax parser";
-		homepage = "https://github.com/ocaml-doc/octavius";
-		license = lib.licenses.isc;
-		maintainers = [ lib.maintainers.vbgl ];
-		inherit (ocaml.meta) platforms;
-	};
+  meta = {
+    description = "Ocamldoc comment syntax parser";
+    homepage = "https://github.com/ocaml-doc/octavius";
+    license = lib.licenses.isc;
+    maintainers = [ lib.maintainers.vbgl ];
+    inherit (ocaml.meta) platforms;
+  };
 }
diff --git a/pkgs/development/ocaml-modules/opium/default.nix b/pkgs/development/ocaml-modules/opium/default.nix
index 2681cc609d0..5db3d1b4a24 100644
--- a/pkgs/development/ocaml-modules/opium/default.nix
+++ b/pkgs/development/ocaml-modules/opium/default.nix
@@ -14,19 +14,19 @@
 }:
 
 buildDunePackage {
-	pname = "opium";
-	inherit (opium_kernel) version src meta minimumOCamlVersion;
+  pname = "opium";
+  inherit (opium_kernel) version src meta minimumOCamlVersion;
 
   useDune2 = true;
 
   doCheck = true;
 
-	buildInputs = [
+  buildInputs = [
     ppx_sexp_conv ppx_fields_conv
     alcotest
   ];
 
-	propagatedBuildInputs = [
+  propagatedBuildInputs = [
     opium_kernel cmdliner cohttp-lwt-unix magic-mime logs stringext
   ];
 }
diff --git a/pkgs/development/ocaml-modules/ppx_derivers/default.nix b/pkgs/development/ocaml-modules/ppx_derivers/default.nix
index a10a6172605..3d4675ed90b 100644
--- a/pkgs/development/ocaml-modules/ppx_derivers/default.nix
+++ b/pkgs/development/ocaml-modules/ppx_derivers/default.nix
@@ -1,22 +1,22 @@
 { lib, fetchFromGitHub, buildDunePackage }:
 
 buildDunePackage rec {
-	pname = "ppx_derivers";
-	version = "1.2.1";
+  pname = "ppx_derivers";
+  version = "1.2.1";
 
   minimumOCamlVersion = "4.02";
 
-	src = fetchFromGitHub {
-		owner = "diml";
-		repo = pname;
-		rev = version;
-		sha256 = "0yqvqw58hbx1a61wcpbnl9j30n495k23qmyy2xwczqs63mn2nkpn";
-	};
+  src = fetchFromGitHub {
+    owner = "diml";
+    repo = pname;
+    rev = version;
+    sha256 = "0yqvqw58hbx1a61wcpbnl9j30n495k23qmyy2xwczqs63mn2nkpn";
+  };
 
-	meta = {
-		description = "Shared [@@deriving] plugin registry";
-		license = lib.licenses.bsd3;
-		maintainers = [ lib.maintainers.vbgl ];
-		inherit (src.meta) homepage;
-	};
+  meta = {
+    description = "Shared [@@deriving] plugin registry";
+    license = lib.licenses.bsd3;
+    maintainers = [ lib.maintainers.vbgl ];
+    inherit (src.meta) homepage;
+  };
 }
diff --git a/pkgs/development/ocaml-modules/ppxfind/default.nix b/pkgs/development/ocaml-modules/ppxfind/default.nix
index 1008dfe62a9..4e135c1b115 100644
--- a/pkgs/development/ocaml-modules/ppxfind/default.nix
+++ b/pkgs/development/ocaml-modules/ppxfind/default.nix
@@ -1,27 +1,27 @@
 { stdenv, lib, buildDunePackage, fetchurl, ocaml, ocaml-migrate-parsetree }:
 
 buildDunePackage (rec {
-	pname = "ppxfind";
-	version = "1.4";
-	src = fetchurl {
-		url = "https://github.com/diml/ppxfind/releases/download/${version}/ppxfind-${version}.tbz";
-		sha256 = "0wa9vcrc26kirc2cqqs6kmarbi8gqy3dgdfiv9y7nzsgy1liqacq";
-	};
+  pname = "ppxfind";
+  version = "1.4";
+  src = fetchurl {
+    url = "https://github.com/diml/ppxfind/releases/download/${version}/ppxfind-${version}.tbz";
+    sha256 = "0wa9vcrc26kirc2cqqs6kmarbi8gqy3dgdfiv9y7nzsgy1liqacq";
+  };
 
-	minimumOCamlVersion = "4.03";
-	useDune2 = true;
+  minimumOCamlVersion = "4.03";
+  useDune2 = true;
 
-	buildInputs = [ ocaml-migrate-parsetree ];
+  buildInputs = [ ocaml-migrate-parsetree ];
 
   # Don't run the native `strip' when cross-compiling.
   dontStrip = stdenv.hostPlatform != stdenv.buildPlatform;
 
-	meta = {
-		homepage = "https://github.com/diml/ppxfind";
-		description = "ocamlfind ppx tool";
-		license = lib.licenses.bsd3;
-		maintainers = [ lib.maintainers.vbgl ];
-	};
+  meta = {
+    homepage = "https://github.com/diml/ppxfind";
+    description = "ocamlfind ppx tool";
+    license = lib.licenses.bsd3;
+    maintainers = [ lib.maintainers.vbgl ];
+  };
 } // (
 if lib.versions.majorMinor ocaml.version == "4.04" then {
   dontStrip = true;
diff --git a/pkgs/development/ocaml-modules/rresult/default.nix b/pkgs/development/ocaml-modules/rresult/default.nix
index ac38657f776..04631cc3b4b 100644
--- a/pkgs/development/ocaml-modules/rresult/default.nix
+++ b/pkgs/development/ocaml-modules/rresult/default.nix
@@ -1,24 +1,24 @@
 { stdenv, lib, fetchurl, ocaml, findlib, ocamlbuild, topkg, result }:
 
 stdenv.mkDerivation rec {
-	name = "ocaml${ocaml.version}-rresult-${version}";
-	version = "0.6.0";
-	src = fetchurl {
-		url = "https://erratique.ch/software/rresult/releases/rresult-${version}.tbz";
-		sha256 = "1k69a3gvrk7f2cshwjzvk7818f0bwxhacgd14wxy6d4gmrggci86";
-	};
+  name = "ocaml${ocaml.version}-rresult-${version}";
+  version = "0.6.0";
+  src = fetchurl {
+    url = "https://erratique.ch/software/rresult/releases/rresult-${version}.tbz";
+    sha256 = "1k69a3gvrk7f2cshwjzvk7818f0bwxhacgd14wxy6d4gmrggci86";
+  };
 
-	buildInputs = [ ocaml findlib ocamlbuild topkg ];
+  buildInputs = [ ocaml findlib ocamlbuild topkg ];
 
   propagatedBuildInputs = [ result ];
 
-	inherit (topkg) buildPhase installPhase;
+  inherit (topkg) buildPhase installPhase;
 
-	meta = {
-		license = lib.licenses.isc;
-		homepage = "https://erratique.ch/software/rresult";
-		description = "Result value combinators for OCaml";
-		maintainers = [ lib.maintainers.vbgl ];
-		inherit (ocaml.meta) platforms;
-	};
+  meta = {
+    license = lib.licenses.isc;
+    homepage = "https://erratique.ch/software/rresult";
+    description = "Result value combinators for OCaml";
+    maintainers = [ lib.maintainers.vbgl ];
+    inherit (ocaml.meta) platforms;
+  };
 }
diff --git a/pkgs/development/ocaml-modules/webbrowser/default.nix b/pkgs/development/ocaml-modules/webbrowser/default.nix
index 896b6e49ac0..ebc5472ce53 100644
--- a/pkgs/development/ocaml-modules/webbrowser/default.nix
+++ b/pkgs/development/ocaml-modules/webbrowser/default.nix
@@ -3,24 +3,24 @@
 }:
 
 stdenv.mkDerivation rec {
-	name = "ocaml${ocaml.version}-webbrowser-${version}";
-	version = "0.6.1";
-	src = fetchurl {
-		url = "https://erratique.ch/software/webbrowser/releases/webbrowser-${version}.tbz";
-		sha256 = "137a948bx7b71zfv4za3hhznrn5lzbbrgzjy0das83zms508isx3";
-	};
+  name = "ocaml${ocaml.version}-webbrowser-${version}";
+  version = "0.6.1";
+  src = fetchurl {
+    url = "https://erratique.ch/software/webbrowser/releases/webbrowser-${version}.tbz";
+    sha256 = "137a948bx7b71zfv4za3hhznrn5lzbbrgzjy0das83zms508isx3";
+  };
 
-	nativeBuildInputs = [ ocaml findlib ocamlbuild topkg ];
-	buildInputs = [];
-	propagatedBuildInputs = [ astring bos cmdliner rresult ];
+  nativeBuildInputs = [ ocaml findlib ocamlbuild topkg ];
+  buildInputs = [];
+  propagatedBuildInputs = [ astring bos cmdliner rresult ];
 
-	inherit (topkg) buildPhase installPhase;
+  inherit (topkg) buildPhase installPhase;
 
-	meta = {
-		description = "Open and reload URIs in browsers from OCaml";
-		homepage = "https://erratique.ch/software/webbrowser";
-		license = lib.licenses.isc;
-		maintainers = [ lib.maintainers.vbgl ];
-		inherit (ocaml.meta) platforms;
-	};
+  meta = {
+    description = "Open and reload URIs in browsers from OCaml";
+    homepage = "https://erratique.ch/software/webbrowser";
+    license = lib.licenses.isc;
+    maintainers = [ lib.maintainers.vbgl ];
+    inherit (ocaml.meta) platforms;
+  };
 }