diff --git a/bin/visualizations/builder_viz.ml b/bin/visualizations/builder_viz.ml
index fcb11e3..5219bd3 100644
--- a/bin/visualizations/builder_viz.ml
+++ b/bin/visualizations/builder_viz.ml
@@ -72,19 +72,22 @@ let print_treemap_html elf_path elf_size =
  * |> Fmt.to_to_string (Tyxml.Svg.pp ()) *)
 
 let print_dependencies_html file =
-  let open Opam_graph in
+  let module G = Opam_graph in
   let switch = read_file file in
   let data = OpamFile.SwitchExport.read_from_string switch in
-  let transitive = false in
-  let graph = Ui.dependencies ~transitive data in
+  let graph = G.Ui.dependencies ~transitive:false data in
+  let sharing_stats =
+    data
+    |> G.dependencies ~transitive:false
+    |> G.calc_sharing_stats in
   let override_css = {|
     .deps-svg-wrap {
       background: rgb(60, 60, 87);
     }
   |}
   in
-  let html = Render.Html.of_assoc ~override_css graph in
-  Format.printf "%a" Render.Html.pp html
+  let html = G.Render.Html.of_assoc ~override_css ~sharing_stats graph in
+  Format.printf "%a" G.Render.Html.pp html
 
 module Cmd_aux = struct
 
diff --git a/lib/views.ml b/lib/views.ml
index 4810936..7acc1c3 100644
--- a/lib/views.ml
+++ b/lib/views.ml
@@ -618,6 +618,7 @@ module Job_build = struct
       ~next
 
   let viz_style_deps = "
+      border: 0;
       width: 45em;
       height: 45.4em;
       max-width: 100%;
@@ -627,37 +628,83 @@ module Job_build = struct
     "
 
   let viz_style_treemap = "
+      border: 0;
       width: 46em;
-      height: 48.4em;
+      height: 49.4em;
       max-width: 100%;
       max-height: 52vw;
       min-width: 38em;
       min-height: 43em;
     "
 
+  let make_description descr_txt =
+    H.span [ H.txt "?" ] ~a:H.[
+        a_title descr_txt;
+        a_style "\
+          font-size: 1.2em;\
+          font-weight: bold;\
+          "
+      ]
+  
   let make_viz_section ~name ~artifacts ~uuid =
-    let viz_deps_iframe = [
-      let src = Fmt.str "/job/%s/build/%a/vizdependencies" name Uuidm.pp uuid in
-      H.iframe ~a:H.[
-          a_src src;
-          a_title "Opam dependencies";
-          a_style viz_style_deps
-        ] []
-    ]
+    let viz_deps = 
+      let iframe = 
+        let src = Fmt.str "/job/%s/build/%a/vizdependencies" name Uuidm.pp uuid in
+        H.iframe ~a:H.[
+            a_src src;
+            a_title "Opam dependencies";
+            a_style viz_style_deps
+          ] []
+      in
+      let descr_txt = "\
+This is an interactive visualization of dependencies, \
+focusing on how shared dependencies are. 
+
+In the middle you see the primary package. \
+Edges shoot out to its direct \
+dependencies, including build dependencies. 
+
+From these direct dependencies, edges shoot out to sets \
+of their own respective direct dependencies. \
+These dependency-sets include duplicates (i.e. shared dependencies) \
+across the other dependency sets \
+- which are shown by hovering over the \
+direct dependencies of the primary package.
+
+The lightness of nodes correspond to how shared they are. See \
+the exact amount of reverse dependencies in the tooltip for each \
+dependency.\
+"
+      in
+      [ iframe; H.br (); make_description descr_txt ]
     in
-    let viz_treemap_iframe = lazy [
-      let src = Fmt.str "/job/%s/build/%a/viztreemap" name Uuidm.pp uuid in
-      H.iframe ~a:H.[
-          a_src src;
-          a_title "Binary dissection";
-          a_style viz_style_treemap
-        ] []
-    ]
+    let viz_treemap = lazy (
+      let iframe = 
+        let src = Fmt.str "/job/%s/build/%a/viztreemap" name Uuidm.pp uuid in
+        H.iframe ~a:H.[
+            a_src src;
+            a_title "Binary dissection";
+            a_style viz_style_treemap
+          ] []
+      in
+      let descr_txt = "\
+This interactive treemap shows the space-usage of modules/libraries inside the \
+ELF binary. You can get more info from each block by \
+hovering over them. 
+
+On top of the treemap there is a scale, showing how much space the \
+treemap itself constitutes of the binary, the excluded symbols/modules \
+and the rest of the unaccounted data.\
+"
+      in
+      [ iframe; H.br (); make_description descr_txt ]
+    )
     in
+    let a_paragraph = H.[ a_style "text-align: center" ] in
     List.flatten [
-      [ H.p viz_deps_iframe];
+      [ H.p ~a:a_paragraph viz_deps];
       if not @@ contains_debug_bin artifacts then [] else [
-        H.p @@ Lazy.force viz_treemap_iframe ];
+        H.p ~a:a_paragraph @@ Lazy.force viz_treemap ];
     ]
 
   let make
diff --git a/packaging/visualizations.sh b/packaging/visualizations.sh
index 8f7c057..5e5d9a5 100755
--- a/packaging/visualizations.sh
+++ b/packaging/visualizations.sh
@@ -78,8 +78,17 @@ FILENAME="${1}"
 CACHE_DIR="${CACHE}/${UUID}"
 BUILDER_VIZ="builder-viz"
 
-TMPTREE=$(mktemp -t treevis)
-TMPOPAM=$(mktemp -t opamvis)
+mktemp_aux () {
+    if [ "$(uname)" = "Linux" ]; then
+        mktemp -t "$1.XXX"
+    elif [ "$(uname)" = "FreeBSD" ]; then
+        mktemp -t "$1"
+    else
+        echo 'Unsupported platform'; exit 1
+    fi
+}
+TMPTREE=$(mktemp_aux treeviz)
+TMPOPAM=$(mktemp_aux opamviz)
 cleanup () {
   rm -rf "${TMPTREE}" "${TMPOPAM}"
 }
@@ -94,7 +103,17 @@ else
     fi
 fi
 
-SIZE="$(stat -f "%z" ${FILENAME})"
+stat_aux () {
+    if [ "$(uname)" = "Linux" ]; then
+        stat -c "%s" "$1"
+    elif [ "$(uname)" = "FreeBSD" ]; then
+        stat -f "%z" "$1"
+    else
+        echo 'Unsupported platform'; exit 1
+    fi
+}
+
+SIZE="$(stat_aux ${FILENAME})"
 
 if [ ! -z "${DEBUG}" ]; then
     if [ -e "${CACHE_DIR}.treemap.html" ]; then