diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 788803c5..fc1975a5 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -13,23 +13,23 @@ on:
 jobs:
   build:
     runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        ocaml-compiler: ["4.14.x", "5.3.x"]
     steps:
-      # Checks-out your repository under $GITHUB_WORKSPACE, so your job can access it
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
 
       - name: Set up OCaml
-        uses: avsm/setup-ocaml@v1
+        uses: ocaml/setup-ocaml@v3
         with:
-          # Version of the OCaml compiler to initialise
-          ocaml-version: 4.11.1
+          ocaml-compiler: ${{ matrix.ocaml-compiler }}
           
-      - name: install dependencies
+      - name: Install dependencies
         run: opam install . --deps-only --with-doc --with-test
         
-      - name: build
-        run: |
-          opam exec -- dune build @install @JS @main
+      - name: Build
+        run: opam exec -- dune build @install @JS @main
           
-      - name: runtest
+      - name: Test
         run: opam exec -- dune runtest
-
diff --git a/.github/workflows/format.yml b/.github/workflows/format.yml
index b52b315b..54d805f1 100644
--- a/.github/workflows/format.yml
+++ b/.github/workflows/format.yml
@@ -5,29 +5,32 @@ on:
     branches: [ master ]
 
 jobs:
-  build:
+  format:
     runs-on: ubuntu-latest
     steps:
-      # Checks-out your repository under $GITHUB_WORKSPACE, so your job can access it
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
         with:
-          ref: ${{ github.head_ref }}
+          fetch-depth: 0
 
       - name: Set up OCaml
-        uses: avsm/setup-ocaml@v1
+        uses: ocaml/setup-ocaml@v3
         with:
-          # Version of the OCaml compiler to initialise
-          ocaml-version: 4.11.1
-          
-      - name: install dependencies
-        run: opam install ocamlformat.0.16.0 dune
+          ocaml-compiler: 4.14.x
+
+      - name: Install formatter
+        run: opam install ocamlformat.0.26.2 dune
         
-      - name: format
+      - name: Check formatting
         run: |
-          opam exec -- dune build @fmt --auto-promote || true
-          
-      - name: commit
-        uses: stefanzweifel/git-auto-commit-action@v4.11.0
-        with:
-          commit_message: Apply formatting changes
-          branch: ${{ github.head_ref }}
+          mapfile -t files < <(git diff --name-only --diff-filter=ACMRT \
+            "origin/${{ github.base_ref }}...HEAD" -- '*.ml' '*.mli')
+          status=0
+          for file in "${files[@]}"; do
+            formatted="$(mktemp)"
+            opam exec -- ocamlformat "$file" > "$formatted"
+            if ! diff --unified "$file" "$formatted"; then
+              status=1
+            fi
+            rm "$formatted"
+          done
+          exit "$status"
diff --git a/js/dune b/js/dune
index d07a0745..2b634e8c 100644
--- a/js/dune
+++ b/js/dune
@@ -3,6 +3,7 @@
  (modes js)
  (preprocess
   (pps js_of_ocaml-ppx))
+ (flags :standard -open Mldoc__)
  (js_of_ocaml (flags --target-env browser))
  (libraries angstrom js_of_ocaml mldoc))
 
diff --git a/lib/dune b/lib/dune
index 59ae5319..e1b962fb 100644
--- a/lib/dune
+++ b/lib/dune
@@ -18,4 +18,4 @@
   uri
   str
   xmlm)
- (wrapped false))
+ (wrapped true))
diff --git a/lib/mldoc.ml b/lib/mldoc.ml
index 3133935f..51ebfb6f 100644
--- a/lib/mldoc.ml
+++ b/lib/mldoc.ml
@@ -3,6 +3,8 @@
 module Document = Document
 module Block = Type_parser.Block
 module Inline = Inline
+module Nested_link = Nested_link
+module Pos = Pos
 module Exporters = Exporter.Exporters
 module Conf = Conf
 module Exporter = Exporter
diff --git a/mldoc.opam b/mldoc.opam
index d1432635..52a83342 100644
--- a/mldoc.opam
+++ b/mldoc.opam
@@ -43,5 +43,5 @@ build: [
 ]
 pin-depends: [
   [ "angstrom.dev" "git+https://github.com/logseq/angstrom#fork" ]
-  [ "xmlm.dev" "git+https://github.com/logseq/xmlm#fork" ]
+  [ "xmlm.dev" "git+https://github.com/logseq/xmlm#eb469d536e98c98f2754c0ff8813c92b3a17fe9f" ]
 ]
diff --git a/test/dune b/test/dune
index 7071d5f0..8397ba8a 100644
--- a/test/dune
+++ b/test/dune
@@ -50,3 +50,7 @@
    (run %{zip})
    (run %{export-md})
    (run %{export-opml}))))
+(env
+ (_
+  (flags
+   (:standard -open Mldoc__))))
diff --git a/test/gen_md_files.ml b/test/gen_md_files.ml
index c3a485cf..9c5fdf8d 100644
--- a/test/gen_md_files.ml
+++ b/test/gen_md_files.ml
@@ -29,7 +29,7 @@ let page_names n =
   let pagename i =
     let+ pagename_l =
       list_size (1 -- 10)
-      @@ frequency
+      @@ oneof_weighted
            [ (1, string_size ~gen:(oneofl char_table) (0 -- 5))
            ; (1, oneofl unicode_table)
            ]
@@ -44,7 +44,7 @@ let plain_inline_g =
   string_size ~gen:(char_range 'A' 'Z') (1 -- 100) >|= fun s -> Inline.Plain s
 
 let inline_g pagenames =
-  frequency [ (10, plain_inline_g); (1, page_ref_g pagenames) ]
+  oneof_weighted [ (10, plain_inline_g); (1, page_ref_g pagenames) ]
 
 let inlines_g pagenames = list_size (1 -- 10) (inline_g pagenames)
 
@@ -54,15 +54,19 @@ let level_candidates max =
 
 let heading ?(init = false) pagenames state =
   let marker_g =
-    frequencyl
-      [ (1, Some "TODO"); (1, Some "DOING"); (1, Some "DONE"); (7, None) ]
+    oneof_weighted
+      [ (1, return (Some "TODO"))
+      ; (1, return (Some "DOING"))
+      ; (1, return (Some "DONE"))
+      ; (7, return None)
+      ]
   in
   let level_g =
     oneofl
       (if init then
-        [ 1 ]
-      else
-        level_candidates (state.last_level + 4))
+         [ 1 ]
+       else
+         level_candidates (state.last_level + 4))
   in
   inlines_g pagenames >>= fun inlines ->
   marker_g >>= fun marker ->
@@ -90,7 +94,7 @@ let blocks_g pagenames : Type.blocks t =
   let* init_heading = heading ~init:true pagenames state in
   let init_heading_with_pos = (init_heading, dummy_pos) in
   let block_with_pos_g =
-    frequency [ (3, paragragh pagenames); (1, heading pagenames state) ]
+    oneof_weighted [ (3, paragragh pagenames); (1, heading pagenames state) ]
     >|= fun b -> (b, dummy_pos)
   in
   let* blocks' = list_size (10 -- 500) block_with_pos_g in
diff --git a/test/test_zip.ml b/test/test_zip.ml
index d12d3167..80f1c2a0 100644
--- a/test/test_zip.ml
+++ b/test/test_zip.ml
@@ -9,7 +9,7 @@ let g =
                match n with
                | 0 -> map leaf nat
                | n ->
-                 frequency
+                 oneof_weighted
                    [ ( 5
                      , branch
                        <$> ( 0 -- (n / 2) >>= fun n' ->