Improved PIO Remote setup on credit-card sized computers (Raspberry Pi, BeagleBon, etc) // Resolve #3865

platformio/package/manager/core.py

@@ -152,7 +152,7 @@ def build_contrib_pysite_package(target_dir, with_metadata=True):
     if "linux" in systype:
         args.extend(["--no-binary", ":all:"])
     try:
-        subprocess.run(args + get_contrib_pysite_deps(), check=True)
+        subprocess.run(args + get_contrib_pysite_deps(), check=True, env=os.environ)
     except subprocess.CalledProcessError as exc:
         if "linux" in systype:
             raise UserSideException(