diff --git a/tools/deploy-plugin.sh b/tools/deploy-plugin.sh
index 87b738d..fd7c670 100755
--- a/tools/deploy-plugin.sh
+++ b/tools/deploy-plugin.sh
@@ -4,19 +4,52 @@ set -e
 SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
 PROJECT_ROOT="$(cd "$SCRIPT_DIR/.." && pwd)"
 
-# shellcheck source=setup-env.sh
-source "$SCRIPT_DIR/setup-env.sh"
+if [[ ! -r "$PROJECT_ROOT/.env" ]]; then
+  echo "Error: $PROJECT_ROOT/.env is missing or unreadable. Copy .env.example to .env and set its values." >&2
+  exit 1
+fi
+load_project_env() {
+  local env_line env_key env_value first_char last_char
+  while IFS= read -r env_line || [[ -n "$env_line" ]]; do
+    env_line="${env_line%$'\r'}"
+    [[ "$env_line" =~ ^[[:space:]]*(#|$) ]] && continue
+    [[ "$env_line" == *=* ]] || continue
+
+    env_key="${env_line%%=*}"
+    env_value="${env_line#*=}"
+    env_key="${env_key#"${env_key%%[![:space:]]*}"}"
+    env_key="${env_key%"${env_key##*[![:space:]]}"}"
+    [[ "$env_key" =~ ^[A-Za-z_][A-Za-z0-9_]*$ ]] || continue
+    env_value="${env_value#"${env_value%%[![:space:]]*}"}"
+    env_value="${env_value%"${env_value##*[![:space:]]}"}"
+
+    if (( ${#env_value} >= 2 )); then
+      first_char="${env_value:0:1}"
+      last_char="${env_value:$((${#env_value} - 1)):1}"
+      if [[ "$first_char" == "$last_char" && ( "$first_char" == '"' || "$first_char" == "'" ) ]]; then
+        env_value="${env_value:1:$((${#env_value} - 2))}"
+      fi
+    fi
+
+    if [[ -z "${!env_key:-}" ]]; then
+      export "$env_key=$env_value"
+    fi
+  done < "$PROJECT_ROOT/.env"
+}
+load_project_env
+
+MINECRAFT_SERVER_PATH="${MINECRAFT_SERVER_PATH:-MCServer}"
+MINECRAFT_SERVER_PATH="${MINECRAFT_SERVER_PATH/#\~/$HOME}"
+[[ "$MINECRAFT_SERVER_PATH" == /* ]] || MINECRAFT_SERVER_PATH="$PROJECT_ROOT/$MINECRAFT_SERVER_PATH"
 
 if [[ -z "$MINECRAFT_SERVER_PATH" ]]; then
   echo "Error: MINECRAFT_SERVER_PATH environment variable is not set."
   exit 1
 fi
 
-# Skip Maven side artifacts (shade originals, sources, javadoc).
-PLUGIN_JAR=$(ls -t "$PROJECT_ROOT"/target/*.jar 2>/dev/null \
-  | grep -vE '/original-[^/]*\.jar$|-(sources|javadoc|tests)\.jar$' | head -n1 || true)
+PLUGIN_JAR=$(ls -t "$PROJECT_ROOT"/build/libs/*.jar 2>/dev/null | head -n1 || true)
 if [[ ! -f "$PLUGIN_JAR" ]]; then
-  echo "Error: No plugin jar found in $PROJECT_ROOT/target. Build the plugin first."
+  echo "Error: No plugin jar found in $PROJECT_ROOT/build/libs. Build the plugin first."
   exit 1
 fi