diff --git a/.gitignore b/.gitignore
index 3e6ba35..23517c8 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,4 @@
 node_modules
 built
-yarn-error.log
\ No newline at end of file
+yarn-error.log
+config.json
\ No newline at end of file
diff --git a/config.example.json b/config.example.json
new file mode 100644
index 0000000..8735315
--- /dev/null
+++ b/config.example.json
@@ -0,0 +1,3 @@
+{
+	"port": 4000
+}
\ No newline at end of file
diff --git a/src/app.ts b/src/app.ts
index 781cb11..cdb7c8f 100644
--- a/src/app.ts
+++ b/src/app.ts
@@ -1,18 +1,23 @@
 import Koa from 'koa';
-import { router } from './router';
-import config from './config';
 import bodyParser from 'koa-bodyparser';
-import { render } from './render';
 
+import { router } from './router';
+import constant from './const';
+import { render } from './render';
+import fs from 'fs';
+
+const conf = JSON.parse(fs.readFileSync(__dirname + '/../config.json', 'utf-8'));
 
 const app = new Koa();
 
-console.log('Simpkey v' + config.version);
+console.log('Simpkey v' + constant.version);
 
 app.use(bodyParser());
 app.use(render);
 app.use(router.routes());
 
+console.log(`listening port ${conf.port}...`);
+
 console.log('App launched!');
 
-app.listen(3000);
\ No newline at end of file
+app.listen(conf.port || 3000);
\ No newline at end of file
diff --git a/src/config.ts b/src/const.ts
similarity index 100%
rename from src/config.ts
rename to src/const.ts
diff --git a/src/render.ts b/src/render.ts
index 79aa1eb..775f0cd 100644
--- a/src/render.ts
+++ b/src/render.ts
@@ -3,13 +3,13 @@ import { parse, toHtml } from 'mfmf';
 import { parsePlain } from 'mfmf/dist/script/mfm/parse';
 
 
-import config from './config';
+import constant from './const';
 import { User } from './models/User';
 import { Note } from './models/Note';
 
 export const render = views(__dirname + '/views', {
 	extension: 'pug', options: {
-		...config,
+		...constant,
 		mfmToHtml: (text: string, plain = false) => {
 			return toHtml(plain ? parsePlain(text) : parse(text), [], {
 				url: '',
diff --git a/src/views/_components.pug b/src/views/_components.pug
index 4726f9c..8cc5945 100644
--- a/src/views/_components.pug
+++ b/src/views/_components.pug
@@ -147,8 +147,8 @@ mixin user-header(user, detail = false)
             .sex 性別: #{user.sex}
         dl
             each field in user.fields
-                dt= mfmToHtml(field.name)
-                dd= mfmToHtml(field.value)
+                dt !{mfmToHtml(field.name)}
+                dd !{mfmToHtml(field.value)}
                 
     .count
         a.notes(href="/" + getAcct(user)) #{user.notesCount} ノート
diff --git a/src/views/about.pug b/src/views/about.pug
index 76bce9e..18f49dc 100644
--- a/src/views/about.pug
+++ b/src/views/about.pug
@@ -2,6 +2,7 @@ extends _base
 
 block content
     p Simpkey は、JavaScript のいらない Misskey クライアントです。
+    p: a(href="https://github.com/xeltica/simpkey", target="_blank", rel="noopener noreferrer") リポジトリを見る
     h2 バージョン #{version}
     ul
     each val in changelog