diff --git a/.gitignore b/.gitignore
index 4a785b7..0518f1c 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,6 +1,6 @@
 .antlr/
 build/
-
+lib/
 # Prerequisites
 *.d
 
diff --git a/.vscode/settings.json b/.vscode/settings.json
index 4544474..6e150ab 100644
--- a/.vscode/settings.json
+++ b/.vscode/settings.json
@@ -6,5 +6,8 @@
         "listeners": true,
         "visitors": true,
         "outputDir": "../lib/generated"
+    },
+    "files.associations": {
+        "ostream": "cpp"
     }
 }
\ No newline at end of file
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..c181b3a
--- /dev/null
+++ b/README.md
@@ -0,0 +1,9 @@
+# bfc
+
+An extension of a language that shall not be named
+
+## Setup oddities
+
+1. Copy antlr4's cpp libs to `./libs/antlr4`.
+2. Copy `antlr-4.8-complete.jar` to `./thirdparty/antlr`.
+3. Generate parsers to `./libs/generated` or use VSCode with the ANTLR extension.
diff --git a/include/main.hpp b/include/main.hpp
index b4243fa..3d6de1d 100644
--- a/include/main.hpp
+++ b/include/main.hpp
@@ -1,3 +1,3 @@
-#ifndef __MAIN_HPP
-#define FIVE 5
-#endif
\ No newline at end of file
+#pragma once
+
+#define FOO 1
diff --git a/src/main.cpp b/src/main.cpp
index 7b23f76..636d697 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -41,11 +41,10 @@ public:
 
 int main(int argc, const char *argv[])
 {
-    // std::cout<<"Hello World "<<FIVE<<std::endl;
     std::ifstream stream;
-    try{
-        stream.open(argv[1]);
-    }catch(std::exception e){
+    
+    stream.open(argv[1]);
+    if(stream.fail()){
         std::cout<<"Could not open"<<std::endl;
         return 1;
     }