diff --git a/README.md b/README.md
index cb24e58..1f7443d 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,6 @@
 # my crystal development environment
 
-- make sure nix is installed
+- make sure nix & vscode are installed
 
 ```bash
 #go to the cloned repo
diff --git a/shell.nix b/shell.nix
index ac99a5f..8e603d8 100644
--- a/shell.nix
+++ b/shell.nix
@@ -21,6 +21,15 @@ pkgs.mkShell {
     duf
     gdu
     boehmgc
+    libb2
+    openssl_3_1
+    libgcc
+    gcc
+
+    # ustream-ssl-mbedtls //doesn't install
+    # mbedtls 
+    # mbedtls_2
+    
 
   ];