refactor: update environment variable loading in installation scripts

configure.sh

@@ -193,7 +193,9 @@ main() {
     
     # Load environment variables
     # shellcheck disable=SC2046
-    export $(grep -v '^#' config.env | xargs)
+    set -a
+source config.env
+set +a
     
     print_info "Generating Dockerfile configurations..."
     while IFS= read -r dockerfile_template; do

install.sh

@@ -16,7 +16,11 @@ set -a
 bash configure.sh
 
 # Load env values from config.env
-export $(grep -v '^#' config.env | xargs) && docker compose pull
+set -a
+source config.env
+set +a
+
+docker compose pull
 
 # Start all containers.
 npm start