diff --git a/LICENSE b/LICENSE
index c7452d0..543658e 100644
--- a/LICENSE
+++ b/LICENSE
@@ -1,6 +1,6 @@
 MIT License
 
-Copyright (c) 2023 abap34
+Copyright (c) 2023 abap34, ebi-fly13, noya2
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal
diff --git a/main b/main
new file mode 100755
index 0000000..0923476
Binary files /dev/null and b/main differ
diff --git a/src/huga.cpp b/src/huga.cpp
deleted file mode 100644
index e37451c..0000000
--- a/src/huga.cpp
+++ /dev/null
@@ -1,6 +0,0 @@
-#include "makejson.hpp"
-#include "parse.hpp"
-
-int main(){
-    almo::make_json(almo::parse_md_file("example.md"));
-}
\ No newline at end of file
diff --git a/src/main.cpp b/src/main.cpp
new file mode 100644
index 0000000..56e491c
--- /dev/null
+++ b/src/main.cpp
@@ -0,0 +1,10 @@
+#include "makejson.hpp"
+#include "parse.hpp"
+#include "render.hpp"
+#include <iostream>
+#include <fstream>
+
+int main(int argc, char *argv[]){
+    nlohmann::json json_ir = almo::make_json(almo::parse_md_file(argv[1]));
+    almo::render(json_ir);
+}
\ No newline at end of file
diff --git a/src/makejson.hpp b/src/makejson.hpp
index bc9d817..b68df52 100644
--- a/src/makejson.hpp
+++ b/src/makejson.hpp
@@ -76,12 +76,12 @@ nlohmann::json dp_on_AST(AST::node_ptr ptr){
     return cur_json;
 }
 
-void make_json(std::vector<AST::node_ptr> ast) {
+nlohmann::json make_json(std::vector<AST::node_ptr> ast) {
     nlohmann::json output_json;
     for (AST::node_ptr ptr : ast){
         output_json.push_back(dp_on_AST(ptr));
     }
-    // output
-    std::cout << output_json.dump(4) << std::endl;
+    
+    return output_json;
 }
 } // namespace almo
diff --git a/src/render.cpp b/src/render.hpp
similarity index 81%
rename from src/render.cpp
rename to src/render.hpp
index 733c62a..68473c5 100644
--- a/src/render.cpp
+++ b/src/render.hpp
@@ -7,6 +7,9 @@
 #include <glob.h>
 #include "json.hpp"
 
+
+namespace almo{
+
 std::string read_file(const std::string& path) {
     std::ifstream file(path);
     if (!file.is_open()) {
@@ -37,7 +40,7 @@ std::vector<std::string> glob(const std::string& pattern) {
 }
 
 std::pair<std::string, std::string> load_html_template() {
-    std::string html_template = read_file("template.html");
+    std::string html_template = read_file("src/template.html");
     std::string head = html_template.substr(0, html_template.find("<!-- ___split___ -->"));
     std::string tail = html_template.substr(html_template.find("<!-- ___split___ -->") + 20);
     return std::make_pair(head, tail);
@@ -219,12 +222,12 @@ std::string render_block(nlohmann::json j, std::string content) {
     return content;
 }
 
-std::string render_newline(nlohmann::json j, std::string content){
+std::string render_newline(nlohmann::json j, std::string content) {
     return "<br>" + content;
 }
 
 bool haschild(nlohmann::json j) {
-   return !(j["class"] == "PlainText" || j["class"] == "NewLine");
+    return !(j["class"] == "PlainText" || j["class"] == "NewLine");
 }
 
 std::string build_block(nlohmann::json j, std::map<std::string, std::function<std::string(nlohmann::json, std::string)>> render_map) {
@@ -235,56 +238,54 @@ std::string build_block(nlohmann::json j, std::map<std::string, std::function<st
             render_str += from_render;
         }
         render_str = render_map[j["class"]](j, render_str);
-    } else {
+    }
+    else {
         render_str = render_map[j["class"]](j, j["content"]);
     }
     return render_str;
 }
 
 
-    int main() {
-
-        // クラス名とレンダリング関数の対応map
-        std::map<std::string, std::function<std::string(nlohmann::json, std::string)>> render_map;
-        render_map["H1"] = render_h1;
-        render_map["H2"] = render_h2;
-        render_map["H3"] = render_h3;
-        render_map["H4"] = render_h4;
-        render_map["H5"] = render_h5;
-        render_map["H6"] = render_h6;
-        render_map["InlineStrong"] = render_strong;
-        render_map["InlineItalic"] = render_italic;
-        render_map["InlineOverline"] = render_over_line;
-        render_map["InlineMath"] = render_inline_math;
-        render_map["MathBlock"] = render_math_block;
-        render_map["CodeBlock"] = render_code_block;
-        render_map["CodeRunner"] = render_code_runner;
-        render_map["PlainText"] = render_plain_text;
-        render_map["Block"] = render_block;
-        render_map["NewLine"] = render_newline;
-
-
-        nlohmann::json json_ir;
-        std::ifstream expect_file("noya2.json");
-        expect_file >> json_ir;
-
-        std::string outputs;
-
-        for (nlohmann::json block : json_ir) {
-            if (block["class"] == "CodeRunner"){
-                outputs += render_code_runner(block, "");
-            } else {
-                std::string render_str;
-                render_str = build_block(block, render_map);
-                outputs += render_str + "\n";
-            }
-            
+void render(nlohmann::json json_ir) {
+
+    // クラス名とレンダリング関数の対応map
+    std::map<std::string, std::function<std::string(nlohmann::json, std::string)>> render_map;
+    render_map["H1"] = render_h1;
+    render_map["H2"] = render_h2;
+    render_map["H3"] = render_h3;
+    render_map["H4"] = render_h4;
+    render_map["H5"] = render_h5;
+    render_map["H6"] = render_h6;
+    render_map["InlineStrong"] = render_strong;
+    render_map["InlineItalic"] = render_italic;
+    render_map["InlineOverline"] = render_over_line;
+    render_map["InlineMath"] = render_inline_math;
+    render_map["MathBlock"] = render_math_block;
+    render_map["CodeBlock"] = render_code_block;
+    render_map["CodeRunner"] = render_code_runner;
+    render_map["PlainText"] = render_plain_text;
+    render_map["Block"] = render_block;
+    render_map["NewLine"] = render_newline;
+
+    std::string outputs;
+
+    for (nlohmann::json block : json_ir) {
+        if (block["class"] == "CodeRunner") {
+            outputs += render_code_runner(block, "");
+        }
+        else {
+            std::string render_str;
+            render_str = build_block(block, render_map);
+            outputs += render_str + "\n";
         }
 
-        std::pair<std::string, std::string> html_template = load_html_template();
+    }
 
-        std::string output_html = html_template.first + outputs + html_template.second;
+    std::pair<std::string, std::string> html_template = load_html_template();
 
-        std::cout << output_html << std::endl;
-    }
+    std::string output_html = html_template.first + outputs + html_template.second;
+
+    std::cout << output_html << std::endl;
+}
 
+}
\ No newline at end of file