diff --git a/build.lua b/build.lua
index 7952989..f5e1bf1 100644
--- a/build.lua
+++ b/build.lua
@@ -1,8 +1,9 @@
 module = "luamml"
 
-typesetexe = "lualatex"
-tdsroot = "lualatex"
+tdsroot      = "lualatex"
 installfiles = { "luamml-*.lua", "*.sty" }
-stdengine     = "luatex"
-checkengines  = {"luatex"}
-sourcefiles  = installfiles
+sourcefiles  = { "luamml-*.lua", "*.sty", "*.dtx" }
+stdengine    = "luatex"
+checkengines = {"luatex"}
+unpackfiles  = { "*.dtx" }
+typesetexe   = "lualatex"
diff --git a/luamml.sty b/luamml.sty
deleted file mode 100644
index 76cb22f..0000000
--- a/luamml.sty
+++ /dev/null
@@ -1,65 +0,0 @@
-\ProvidesExplPackage {luamml} {2021-04-23} {0.0.1-alpha}
-  {Feel free to add a description here}
-
-\int_new:N \l__luamml_flag_int
-\tl_new:N \l__luamml_filename_tl
-\tl_new:N \l__luamml_root_tl
-\tl_set:Nn \l__luamml_root_tl { mrow }
-\int_new:N \tracingmathml
-\lua_now:n { require'luamml-tex' }
-
-\cs_new:Npn \luamml_flag_process: {
-  \int_set:Nn \l__luamml_flag_int { 3 }
-}
-\cs_new:Npn \luamml_flag_save: {
-  \int_set:Nn \l__luamml_flag_int { 1 }
-}
-\cs_new:Npn \luamml_flag_save:N #1 {
-  \int_set:Nn \l__luamml_flag_int { 17 + 32 * #1 }
-}
-\cs_new:Npn \luamml_flag_save:Nn #1 {
-  \int_set:Nn \l__luamml_flag_int { 21 + 32 * #1 }
-  \tl_set:Nn \l__luamml_root_tl
-}
-\cs_new:Npn \luamml_flag_save:n {
-  \int_set:Nn \l__luamml_flag_int { 5 }
-  \tl_set:Nn \l__luamml_root_tl
-}
-\cs_new:Npn \luamml_flag_ignore: {
-  \int_set:Nn \l__luamml_flag_int { 0 }
-}
-\cs_new:Npn \luamml_flag_structelem: {
-  \int_set:Nn \l__luamml_flag_int { 11 }
-}
-\cs_new:Npn \luamml_set_filename:n {
-  \tl_set:Nn \l__luamml_filename_tl
-}
-\luamml_flag_process:
-
-
-\cs_new_protected:Npn \luamml_annotate:nen #1#2#3 {
-  \__luamml_annotate_begin:
-    #3
-    \__luamml_annotate_end:we \tex_numexpr:D #1 \scan_stop: {#2}
-}
-
-\cs_new_protected:Npn \luamml_annotate:en #1#2 {
-  \__luamml_annotate_begin:
-    #2
-  \__luamml_annotate_end:e {#1}
-}
-
-
-\cs_new:Npn \__luamml_patch_package:nn #1 #2 {
-  \@ifpackageloaded {#1} {#2} {
-    \hook_gput_code:nnn {package/after/#1} {luamml} {#2}
-  }
-}
-\cs_new:Npn \__luamml_patch_package:n #1 {
-  \__luamml_patch_package:nn {#1} {
-    \RequirePackage { luamml-patches-#1 }
-  }
-}
-\RequirePackage { luamml-patches-kernel }
-\__luamml_patch_package:n {amsmath}
-\__luamml_patch_package:n {array}