Fix flake uri

Author: arctan95

.devcontainer/first-run-setup.sh

@@ -16,7 +16,7 @@ Options:
   --password_store       (Optional) Your private password store git repository. Default is 'https://github.com/arctan95/password-store.git'
   --repository           Your codespaces git repository to clone. Default is 'https://github.com/arctan95/codespaces.git'
   --branch               Your codespaces git repository branch to checkout. Default is 'master'
-  --flake_uri            Use your Home Manager configuration at flake-uri. Default is 'github:arctan95/codespaces'
+  --flake_uri            Use your Home Manager configuration at flake-uri. Default is '$HOME/.codespaces'
 "
 
 version="v0.1.0"
@@ -26,7 +26,7 @@ enable_tunnel=false
 password_store="https://github.com/arctan95/password-store.git"
 repository="https://github.com/arctan95/codespaces.git"
 branch="master"
-flake_uri="github:arctan95/codespaces"
+flake_uri="$HOME/.codespaces"
 
 for arg in "$@"; do
   case $arg in