diff --git a/main.go b/main.go
index 121713e..62b8ad7 100644
--- a/main.go
+++ b/main.go
@@ -1,7 +1,7 @@
 package main
 
 import (
-	"encoding/json"
+	"flag"
 	"html/template"
 	"io/ioutil"
 	"log"
@@ -15,40 +15,28 @@ import (
 )
 
 func main() {
-	if err := loadConfig(); err != nil {
-		log.Fatal(`Failed to load config. ` + err.Error())
-	}
+	loadConfig()
 
 	if err := updateTemplate(); err != nil {
-		log.Fatal(`Failed to load template. ` + err.Error())
+		log.Fatal(`Failed to load template. (` + err.Error() + `)`)
 	}
 
 	log.Fatal(http.ListenAndServe(":"+strconv.Itoa(config.Port), http.HandlerFunc(serveRequest)))
 }
 
 var config struct {
-	Port     int    `json:"port"`
-	Template string `json:"template"`
+	Port     int
+	Template string
+	Pages    string
+	Static   string
 }
 
-func loadConfig() error {
-	f, err := os.Open(`config.json`)
-	if err != nil && !os.IsNotExist(err) {
-		return err
-	}
-
-	// Set defaults
-	config.Port = 80
-	config.Template = `template.html`
-
-	if err != nil {
-		return
-	}
-
-	err = json.NewDecoder(f).Decode(&config)
-	if err != nil {
-		return err
-	}
+func loadConfig() {
+	flag.IntVar(&config.Port, `port`, 80, `The port mdsite will listen on`)
+	flag.StringVar(&config.Template, `template`, `template.html`, `The template used by mdsite`)
+	flag.StringVar(&config.Pages, `pages`, `pages`, `The OS path used when searching a page`)
+	flag.StringVar(&config.Static, `static`, `static`, `The OS path used for static resource`)
+	flag.Parse()
 }
 
 var t *template.Template
@@ -64,23 +52,18 @@ func updateTemplate() error {
 
 func serveRequest(w http.ResponseWriter, r *http.Request) {
 	if strings.HasPrefix(r.URL.Path, `/static/`) {
-		p, _ := os.Getwd()
-		p = path.Join(p, r.URL.Path)
-		http.ServeFile(w, r, p)
+		path := path.Join(config.Static, path.Clean(strings.TrimPrefix(r.URL.Path, `/static/`)))
+		http.ServeFile(w, r, path)
 		return
 	}
 	servePage(w, r)
 }
 
 func servePage(w http.ResponseWriter, r *http.Request) {
-	p := `pages` + path.Clean(r.URL.Path)
+	p := path.Join(config.Pages, path.Clean(r.URL.Path))
 
 	s, err := os.Stat(p)
-	if err != nil {
-		w.WriteHeader(404)
-		return
-	}
-	if s.IsDir() {
+	if err == nil && s.IsDir() {
 		if p[len(p)-1] != '/' {
 			p += `/`
 		}