diff --git a/.gitignore b/.gitignore
index ca35be0..f977f14 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1 +1,2 @@
 _site
+api
\ No newline at end of file
diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 0000000..d9bf7bd
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,9 @@
+[submodule "src/ReFuel.StbImage"]
+	path = src/ReFuel.StbImage
+	url = https://git.mixedup.dev/ReFuel/ReFuel.StbImage.git
+[submodule "src/ReMime"]
+	path = src/ReMime
+	url = https://git.mixedup.dev/ReFuel/ReMime.git
+[submodule "src/ReFuel.FreeType"]
+	path = src/ReFuel.FreeType
+	url = https://git.mixedup.dev/ReFuel/ReFuel.FreeType.git
diff --git a/docfx.json b/docfx.json
index 49a19bc..e94ae1a 100644
--- a/docfx.json
+++ b/docfx.json
@@ -3,20 +3,27 @@
     {
       "src": [
         {
-          "src": "../src",
+          "src": "src",
           "files": [
-            "**/*.csproj"
+            "**/*.csproj",
+            "**/bin/Release/*.dll"
+          ],
+          "exclude": [
+            "ReMime/ReMime.Tests/**"
           ]
         }
       ],
-      "dest": "api"
+      "dest": "api",
+      "properties": {
+        "TargetFramework": "net6.0"
+      }
     }
   ],
   "build": {
     "content": [
       {
         "files": [
-          "**/*.{md,yml}"
+          "**/*.{md,yml}", "api/*.yml"
         ],
         "exclude": [
           "_site/**"
diff --git a/src/ReFuel.FreeType b/src/ReFuel.FreeType
new file mode 160000
index 0000000..3e687d3
--- /dev/null
+++ b/src/ReFuel.FreeType
@@ -0,0 +1 @@
+Subproject commit 3e687d3c75b5c593c536134f74a69f502f6b7f3b
diff --git a/src/ReFuel.StbImage b/src/ReFuel.StbImage
new file mode 160000
index 0000000..846e090
--- /dev/null
+++ b/src/ReFuel.StbImage
@@ -0,0 +1 @@
+Subproject commit 846e09054de30e026a0e3c9803642c03b90e56ab
diff --git a/src/ReMime b/src/ReMime
new file mode 160000
index 0000000..e6f2a74
--- /dev/null
+++ b/src/ReMime
@@ -0,0 +1 @@
+Subproject commit e6f2a74819d890062b82b46e31b98fb7935d71b0